1012202020120 has 32 divisors (see below), whose sum is σ = 2277862391520. Its totient is φ = 404808302080.

The previous prime is 1012202020111. The next prime is 1012202020129. The reversal of 1012202020120 is 210202022101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1012202020111) and next prime (1012202020129).

It is a self number, because there is not a number n which added to its sum of digits gives 1012202020120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012202020129) 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, 2039377 + ... + 2486656.

It is an arithmetic number, because the mean of its divisors is an integer number (71183199735).

Almost surely, 2^{1012202020120} is an apocalyptic number.

1012202020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012202020120 is an abundant number, since it is smaller than the sum of its proper divisors (1265660371400).

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

1012202020120 is a wasteful number, since it uses less digits than its factorization.

1012202020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531635 (or 4531631 counting only the distinct ones).

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

Adding to 1012202020120 its reverse (210202022101), we get a palindrome (1222404042221).

The spelling of 1012202020120 in words is "one trillion, twelve billion, two hundred two million, twenty thousand, one hundred twenty".