212021021022 has 32 divisors (see below), whose sum is σ = 451959139584. Its totient is φ = 66075888000.

The previous prime is 212021021011. The next prime is 212021021041. The reversal of 212021021022 is 220120120212.

It is a super-2 number, since 2×212021021022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212021020992 and 212021021010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6867504 + ... + 6898307.

It is an arithmetic number, because the mean of its divisors is an integer number (14123723112).

Almost surely, 2^212021021022 is an apocalyptic number.

212021021022 is an abundant number, since it is smaller than the sum of its proper divisors (239938118562).

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

212021021022 is a wasteful number, since it uses less digits than its factorization.

212021021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765984.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212021021022 its reverse (220120120212), we get a palindrome (432141141234).

The spelling of 212021021022 in words is "two hundred twelve billion, twenty-one million, twenty-one thousand, twenty-two".