20211022111210 has 64 divisors (see below), whose sum is σ = 42628763358720. Its totient is φ = 6754492154880.

The previous prime is 20211022111109. The next prime is 20211022111261. The reversal of 20211022111210 is 1211122011202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121467 + ... + 6358993.

It is an arithmetic number, because the mean of its divisors is an integer number (666074427480).

Almost surely, 2^{20211022111210} is an apocalyptic number.

20211022111210 is an abundant number, since it is smaller than the sum of its proper divisors (22417741247510).

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

20211022111210 is a wasteful number, since it uses less digits than its factorization.

20211022111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6238711.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20211022111210 its reverse (1211122011202), we get a palindrome (21422144122412).

The spelling of 20211022111210 in words is "twenty trillion, two hundred eleven billion, twenty-two million, one hundred eleven thousand, two hundred ten".