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210020012220222 = 23212839390875503
BaseRepresentation
bin101111110000001100011000…
…001110010101111100111110
31000112121201100202101102122100
4233300030120032111330332
5210011431441112021342
62022401510041525530
762144305455023361
oct5760143016257476
91015551322342570
10210020012220222
1160a11a94762646
121b67b3511a38a6
139025a574b0319
1439c10468da0d8
151943180d63e4c
hexbf0318395f3e

210020012220222 has 24 divisors (see below), whose sum is σ = 455046908962464. Its totient is φ = 70006124716704.

The previous prime is 210020012220211. The next prime is 210020012220223. The reversal of 210020012220222 is 222022210020012.

210020012220222 is a `hidden beast` number, since 2 + 10 + 0 + 200 + 12 + 220 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 210020012220195 and 210020012220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020012220223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43126678 + ... + 47748825.

It is an arithmetic number, because the mean of its divisors is an integer number (18960287873436).

Almost surely, 2210020012220222 is an apocalyptic number.

210020012220222 is an abundant number, since it is smaller than the sum of its proper divisors (245026896742242).

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

210020012220222 is a wasteful number, since it uses less digits than its factorization.

210020012220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91003904 (or 91003901 counting only the distinct ones).

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

Adding to 210020012220222 its reverse (222022210020012), we get a palindrome (432042222240234).

The spelling of 210020012220222 in words is "two hundred ten trillion, twenty billion, twelve million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 128393 256786 385179 770358 1155537 2311074 90875503 181751006 272626509 545253018 817879527 1635759054 11667778456679 23335556913358 35003335370037 70006670740074 105010006110111 210020012220222