102221012202012 has 72 divisors (see below), whose sum is σ = 282164916629232. Its totient is φ = 30944994912000.

The previous prime is 102221012201969. The next prime is 102221012202017. The reversal of 102221012202012 is 210202210122201.

It is a happy number.

102221012202012 is a `hidden beast` number, since 10 + 22 + 210 + 1 + 220 + 201 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221012202017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129060489 + ... + 129850112.

It is an arithmetic number, because the mean of its divisors is an integer number (3918957175406).

Almost surely, 2^{102221012202012} is an apocalyptic number.

102221012202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102221012202012 is an abundant number, since it is smaller than the sum of its proper divisors (179943904427220).

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

102221012202012 is a wasteful number, since it uses less digits than its factorization.

102221012202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258911619 (or 258911614 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102221012202012 its reverse (210202210122201), we get a palindrome (312423222324213).

The spelling of 102221012202012 in words is "one hundred two trillion, two hundred twenty-one billion, twelve million, two hundred two thousand, twelve".