2021212102210 has 32 divisors (see below), whose sum is σ = 4174100760960. Its totient is φ = 690290552832.

The previous prime is 2021212102157. The next prime is 2021212102267. The reversal of 2021212102210 is 122012121202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56158000 + ... + 56193979.

It is an arithmetic number, because the mean of its divisors is an integer number (130440648780).

Almost surely, 2^{2021212102210} is an apocalyptic number.

2021212102210 is an abundant number, since it is smaller than the sum of its proper divisors (2152888658750).

2021212102210 is a wasteful number, since it uses less digits than its factorization.

2021212102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112352250.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021212102210 its reverse (122012121202), we get a palindrome (2143224223412).

The spelling of 2021212102210 in words is "two trillion, twenty-one billion, two hundred twelve million, one hundred two thousand, two hundred ten".