2021212110210 has 64 divisors (see below), whose sum is σ = 4988869546752. Its totient is φ = 523701040896.

The previous prime is 2021212110161. The next prime is 2021212110257. The reversal of 2021212110210 is 120112121202.

It is a super-2 number, since 2×2021212110210² (a number of 25 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 2021212110210.

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, 445377 + ... + 2059316.

It is an arithmetic number, because the mean of its divisors is an integer number (77951086668).

Almost surely, 2^{2021212110210} is an apocalyptic number.

2021212110210 is an abundant number, since it is smaller than the sum of its proper divisors (2967657436542).

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

2021212110210 is a wasteful number, since it uses less digits than its factorization.

2021212110210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505467.

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

Adding to 2021212110210 its reverse (120112121202), we get a palindrome (2141324231412).

The spelling of 2021212110210 in words is "two trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand, two hundred ten".