202212210221021 has 48 divisors (see below), whose sum is σ = 276672423867840. Its totient is φ = 145277622846720.

The previous prime is 202212210220961. The next prime is 202212210221039. The reversal of 202212210221021 is 120122012212202.

It is not a de Polignac number, because 202212210221021 - 2⁶ = 202212210220957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202212210220984 and 202212210221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212210221041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10831991 + ... + 22841988.

It is an arithmetic number, because the mean of its divisors is an integer number (5764008830580).

Almost surely, 2^{202212210221021} is an apocalyptic number.

It is an amenable number.

202212210221021 is a deficient number, since it is larger than the sum of its proper divisors (74460213646819).

202212210221021 is a wasteful number, since it uses less digits than its factorization.

202212210221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33674874 (or 33674867 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202212210221021 its reverse (120122012212202), we get a palindrome (322334222433223).

The spelling of 202212210221021 in words is "two hundred two trillion, two hundred twelve billion, two hundred ten million, two hundred twenty-one thousand, twenty-one".