20211022021110 has 64 divisors (see below), whose sum is σ = 49633226744832. Its totient is φ = 5264847300096.

The previous prime is 20211022021037. The next prime is 20211022021139. The reversal of 20211022021110 is 1112022011202.

It is a super-2 number, since 2×20211022021110² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20211022021110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12966259 + ... + 14441118.

It is an arithmetic number, because the mean of its divisors is an integer number (775519167888).

Almost surely, 2^{20211022021110} is an apocalyptic number.

20211022021110 is an abundant number, since it is smaller than the sum of its proper divisors (29422204723722).

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

20211022021110 is a wasteful number, since it uses less digits than its factorization.

20211022021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27407957.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211022021110 its reverse (1112022011202), we get a palindrome (21323044032312).

The spelling of 20211022021110 in words is "twenty trillion, two hundred eleven billion, twenty-two million, twenty-one thousand, one hundred ten".