2021112212210 has 128 divisors (see below), whose sum is σ = 4664495808000. Its totient is φ = 613469767680.

The previous prime is 2021112212177. The next prime is 2021112212227. The reversal of 2021112212210 is 122122111202.

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, 1742216 + ... + 2660364.

It is an arithmetic number, because the mean of its divisors is an integer number (36441373500).

Almost surely, 2^{2021112212210} is an apocalyptic number.

2021112212210 is an abundant number, since it is smaller than the sum of its proper divisors (2643383595790).

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

2021112212210 is a wasteful number, since it uses less digits than its factorization.

2021112212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918276.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2021112212210 its reverse (122122111202), we get a palindrome (2143234323412).

It can be divided in two parts, 2021112 and 212210, that added together give a palindrome (2233322).

The spelling of 2021112212210 in words is "two trillion, twenty-one billion, one hundred twelve million, two hundred twelve thousand, two hundred ten".