202121312013120 has 56 divisors (see below), whose sum is σ = 641735165644704. Its totient is φ = 53899016536576.

The previous prime is 202121312013119. The next prime is 202121312013139. The reversal of 202121312013120 is 21310213121202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105271515714 + ... + 105271517633.

Almost surely, 2^{202121312013120} is an apocalyptic number.

202121312013120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202121312013120 is an abundant number, since it is smaller than the sum of its proper divisors (439613853631584).

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

202121312013120 is a wasteful number, since it uses less digits than its factorization.

202121312013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210543033367 (or 210543033357 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 202121312013120 its reverse (21310213121202), we get a palindrome (223431525134322).

The spelling of 202121312013120 in words is "two hundred two trillion, one hundred twenty-one billion, three hundred twelve million, thirteen thousand, one hundred twenty".