202221212220120 has 64 divisors (see below), whose sum is σ = 620772093342720. Its totient is φ = 52671571553664.

The previous prime is 202221212220073. The next prime is 202221212220151. The reversal of 202221212220120 is 21022212122202.

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, 19595073544 + ... + 19595083863.

It is an arithmetic number, because the mean of its divisors is an integer number (9699563958480).

Almost surely, 2^{202221212220120} is an apocalyptic number.

202221212220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221212220120 is an abundant number, since it is smaller than the sum of its proper divisors (418550881122600).

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

202221212220120 is a wasteful number, since it uses less digits than its factorization.

202221212220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39190157464 (or 39190157460 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202221212220120 its reverse (21022212122202), we get a palindrome (223243424342322).

The spelling of 202221212220120 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty".