20111102210210 has 128 divisors (see below), whose sum is σ = 41845269731328. Its totient is φ = 6887079936000.

The previous prime is 20111102210191. The next prime is 20111102210261. The reversal of 20111102210210 is 1201220111102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327293090 + ... + 327354530.

It is an arithmetic number, because the mean of its divisors is an integer number (326916169776).

Almost surely, 2^{20111102210210} is an apocalyptic number.

20111102210210 is an abundant number, since it is smaller than the sum of its proper divisors (21734167521118).

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

20111102210210 is a wasteful number, since it uses less digits than its factorization.

20111102210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63480.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20111102210210 its reverse (1201220111102), we get a palindrome (21312322321312).

The spelling of 20111102210210 in words is "twenty trillion, one hundred eleven billion, one hundred two million, two hundred ten thousand, two hundred ten".