20212002100120 has 32 divisors (see below), whose sum is σ = 45582519856320. Its totient is φ = 8066042594560.

The previous prime is 20212002100117. The next prime is 20212002100127. The reversal of 20212002100120 is 2100120021202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212002100120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212002100127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586177717 + ... + 586212196.

It is an arithmetic number, because the mean of its divisors is an integer number (1424453745510).

Almost surely, 2^{20212002100120} is an apocalyptic number.

20212002100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212002100120 is an abundant number, since it is smaller than the sum of its proper divisors (25370517756200).

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

20212002100120 is a wasteful number, since it uses less digits than its factorization.

20212002100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172390355 (or 1172390351 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212002100120 its reverse (2100120021202), we get a palindrome (22312122121322).

The spelling of 20212002100120 in words is "twenty trillion, two hundred twelve billion, two million, one hundred thousand, one hundred twenty".