102011111212210 has 16 divisors (see below), whose sum is σ = 183620256906456. Its totient is φ = 40804387435008.

The previous prime is 102011111212181. The next prime is 102011111212229. The reversal of 102011111212210 is 12212111110201.

It can be written as a sum of positive squares in 4 ways, for example, as 55864726981441 + 46146384230769 = 7474271^2 + 6793113^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798712 + ... + 14305948.

Almost surely, 2^{102011111212210} is an apocalyptic number.

102011111212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102011111212210 is a deficient number, since it is larger than the sum of its proper divisors (81609145694246).

102011111212210 is a wasteful number, since it uses less digits than its factorization.

102011111212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14262477.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 102011111212210 its reverse (12212111110201), we get a palindrome (114223222322411).

The spelling of 102011111212210 in words is "one hundred two trillion, eleven billion, one hundred eleven million, two hundred twelve thousand, two hundred ten".