202212110221020 has 72 divisors (see below), whose sum is σ = 613387180892304. Its totient is φ = 53922311013888.

The previous prime is 202212110220943. The next prime is 202212110221039. The reversal of 202212110221020 is 20122011212202.

It is a happy number.

202212110221020 is a `hidden beast` number, since 2 + 0 + 221 + 211 + 0 + 2 + 210 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202212110220984 and 202212110221002.

It is a congruent number.

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, 1064467 + ... + 20138453.

It is an arithmetic number, because the mean of its divisors is an integer number (8519266401282).

Almost surely, 2^{202212110221020} is an apocalyptic number.

202212110221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202212110221020 is an abundant number, since it is smaller than the sum of its proper divisors (411175070671284).

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

202212110221020 is a wasteful number, since it uses less digits than its factorization.

202212110221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19132899 (or 19132894 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202212110221020 its reverse (20122011212202), we get a palindrome (222334121433222).

The spelling of 202212110221020 in words is "two hundred two trillion, two hundred twelve billion, one hundred ten million, two hundred twenty-one thousand, twenty".