1011202012120 has 64 divisors (see below), whose sum is σ = 2300104778400. Its totient is φ = 400067112960.

The previous prime is 1011202012111. The next prime is 1011202012147. The reversal of 1011202012120 is 212102021101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011202012120.

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, 2286472 + ... + 2692648.

Almost surely, 2^{1011202012120} is an apocalyptic number.

1011202012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011202012120 is an abundant number, since it is smaller than the sum of its proper divisors (1288902766280).

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

1011202012120 is a wasteful number, since it uses less digits than its factorization.

1011202012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406868 (or 406864 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011202012120 its reverse (212102021101), we get a palindrome (1223304033221).

The spelling of 1011202012120 in words is "one trillion, eleven billion, two hundred two million, twelve thousand, one hundred twenty".