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211212120022202 = 21371306137378667
BaseRepresentation
bin110000000001100010100111…
…011000101101110010111010
31000200211200101210112100020102
4300001202213120231302322
5210140444410211202302
62025113301453155402
762326400142114635
oct6001424730556272
91020750353470212
10211212120022202
1161331614511532
121b8323a778bb62
1390b12a999a970
143a22a14bbcc1c
1519641a2c4a702
hexc018a762dcba

211212120022202 has 32 divisors (see below), whose sum is σ = 346107327801984. Its totient is φ = 96078123086400.

The previous prime is 211212120022193. The next prime is 211212120022207. The reversal of 211212120022202 is 202220021212112.

It is a super-2 number, since 2×2112121200222022 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211212120022207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13038728 + ... + 24339939.

It is an arithmetic number, because the mean of its divisors is an integer number (10815853993812).

Almost surely, 2211212120022202 is an apocalyptic number.

211212120022202 is a deficient number, since it is larger than the sum of its proper divisors (134895207779782).

211212120022202 is a wasteful number, since it uses less digits than its factorization.

211212120022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37381814.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211212120022202 its reverse (202220021212112), we get a palindrome (413432141234314).

The spelling of 211212120022202 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twenty million, twenty-two thousand, two hundred two".

Divisors: 1 2 13 26 71 142 923 1846 3061 6122 39793 79586 217331 434662 2825303 5650606 37378667 74757334 485922671 971845342 2653885357 5307770714 34500509641 69001019282 114416099687 228832199374 1487409295931 2974818591862 8123543077777 16247086155554 105606060011101 211212120022202