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12210102220220 = 2251438942428599
BaseRepresentation
bin1011000110101110001011…
…0011100011010110111100
31121020021102000110202012022
42301223202303203112330
53100022242132021340
641545124333455312
72400102500301422
oct261534263432674
947207360422168
1012210102220220
113988303428633
121452496641538
136a753b939458
14302d87631112
1516292d1e53b5
hexb1ae2ce35bc

12210102220220 has 24 divisors (see below), whose sum is σ = 25642997268000. Its totient is φ = 4883701344192.

The previous prime is 12210102220219. The next prime is 12210102220229. The reversal of 12210102220220 is 2202220101221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210102220229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20926520 + ... + 21502079.

It is an arithmetic number, because the mean of its divisors is an integer number (1068458219500).

Almost surely, 212210102220220 is an apocalyptic number.

12210102220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210102220220 is an abundant number, since it is smaller than the sum of its proper divisors (13432895047780).

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

12210102220220 is a wasteful number, since it uses less digits than its factorization.

12210102220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42442997 (or 42442995 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12210102220220 its reverse (2202220101221), we get a palindrome (14412322321441).

The spelling of 12210102220220 in words is "twelve trillion, two hundred ten billion, one hundred two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 14389 28778 57556 71945 143890 287780 42428599 84857198 169714396 212142995 424285990 848571980 610505111011 1221010222022 2442020444044 3052525555055 6105051110110 12210102220220