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210022220020212 = 223223271935977949
BaseRepresentation
bin101111110000001110011011…
…110100011011100111110100
31000112121221001121202021212100
4233300032123310123213310
5210012001001311121322
62022402513110422100
762144414254020135
oct5760163364334764
91015557047667770
10210022220020212
1160a12a17a2a436
121b67b868661930
139026019a13052
1439c11b5c07c8c
15194325eac1dac
hexbf039bd1b9f4

210022220020212 has 72 divisors (see below), whose sum is σ = 556015829241600. Its totient is φ = 66716508133440.

The previous prime is 210022220020199. The next prime is 210022220020241. The reversal of 210022220020212 is 212020022220012.

210022220020212 is a `hidden beast` number, since 2 + 10 + 0 + 222 + 200 + 20 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467764587 + ... + 468213362.

It is an arithmetic number, because the mean of its divisors is an integer number (7722442072800).

Almost surely, 2210022220020212 is an apocalyptic number.

It is an amenable number.

210022220020212 is an abundant number, since it is smaller than the sum of its proper divisors (345993609221388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210022220020212 is a wasteful number, since it uses less digits than its factorization.

210022220020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935978253 (or 935978248 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 210022220020212 its reverse (212020022220012), we get a palindrome (422042242240224).

The spelling of 210022220020212 in words is "two hundred ten trillion, twenty-two billion, two hundred twenty million, twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 271 276 414 542 813 828 1084 1626 2439 3252 4878 6233 9756 12466 18699 24932 37398 56097 74796 112194 224388 935977949 1871955898 2807933847 3743911796 5615867694 8423801541 11231735388 16847603082 21527492827 33695206164 43054985654 64582478481 86109971308 129164956962 193747435443 253650024179 258329913924 387494870886 507300048358 760950072537 774989741772 1014600096716 1521900145074 2282850217611 3043800290148 4565700435222 5833950556117 9131400870444 11667901112234 17501851668351 23335802224468 35003703336702 52505555005053 70007406673404 105011110010106 210022220020212