102011102221220 has 12 divisors (see below), whose sum is σ = 214223314664604. Its totient is φ = 40804440888480.

The previous prime is 102011102221211. The next prime is 102011102221279. The reversal of 102011102221220 is 22122201110201.

It can be written as a sum of positive squares in 2 ways, for example, as 15704623964836 + 86306478256384 = 3962906^2 + 9290128^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550277555511 + ... + 2550277555550.

It is an arithmetic number, because the mean of its divisors is an integer number (17851942888717).

Almost surely, 2^{102011102221220} is an apocalyptic number.

102011102221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011102221220 is an abundant number, since it is smaller than the sum of its proper divisors (112212212443384).

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

102011102221220 is a wasteful number, since it uses less digits than its factorization.

102011102221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100555111070 (or 5100555111068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102011102221220 its reverse (22122201110201), we get a palindrome (124133303331421).

The spelling of 102011102221220 in words is "one hundred two trillion, eleven billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty".