102201221112212 has 12 divisors (see below), whose sum is σ = 178852256105460. Its totient is φ = 51100576510656.

The previous prime is 102201221112127. The next prime is 102201221112233. The reversal of 102201221112212 is 212211122102201.

It can be written as a sum of positive squares in 2 ways, for example, as 11000936698756 + 91200284413456 = 3316766^2 + 9549884^2 .

It is a congruent number.

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, 1025537 + ... + 14333672.

It is an arithmetic number, because the mean of its divisors is an integer number (14904354675455).

Almost surely, 2^{102201221112212} is an apocalyptic number.

It is an amenable number.

102201221112212 is a deficient number, since it is larger than the sum of its proper divisors (76651034993248).

102201221112212 is a wasteful number, since it uses less digits than its factorization.

102201221112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022730 (or 17022728 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102201221112212 its reverse (212211122102201), we get a palindrome (314412343214413).

The spelling of 102201221112212 in words is "one hundred two trillion, two hundred one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twelve".