102221211012210 has 80 divisors (see below), whose sum is σ = 280047544249176. Its totient is φ = 26744669033472.

The previous prime is 102221211012191. The next prime is 102221211012311. The reversal of 102221211012210 is 12210112122201.

102221211012210 is a `hidden beast` number, since 1 + 0 + 222 + 121 + 101 + 221 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 92130683931729 + 10090527080481 = 9598473^2 + 3176559^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1190513919 + ... + 1190599778.

Almost surely, 2^{102221211012210} is an apocalyptic number.

102221211012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102221211012210 is an abundant number, since it is smaller than the sum of its proper divisors (177826333236966).

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

102221211012210 is a wasteful number, since it uses less digits than its factorization.

102221211012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381113769 (or 2381113760 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102221211012210 its reverse (12210112122201), we get a palindrome (114431323134411).

The spelling of 102221211012210 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred eleven million, twelve thousand, two hundred ten".