212211221102020 has 72 divisors (see below), whose sum is σ = 518803250857920. Its totient is φ = 72701774550720.

The previous prime is 212211221101933. The next prime is 212211221102053. The reversal of 212211221102020 is 20201122112212.

It is a super-2 number, since 2×212211221102020² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82600840 + ... + 85131199.

It is an arithmetic number, because the mean of its divisors is an integer number (7205600706360).

Almost surely, 2^{212211221102020} is an apocalyptic number.

212211221102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211221102020 is an abundant number, since it is smaller than the sum of its proper divisors (306592029755900).

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

212211221102020 is a wasteful number, since it uses less digits than its factorization.

212211221102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167733353 (or 167733344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212211221102020 its reverse (20201122112212), we get a palindrome (232412343214232).

The spelling of 212211221102020 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, one hundred two thousand, twenty".