1012221012120 has 64 divisors (see below), whose sum is σ = 3048478938720. Its totient is φ = 268875300864.

The previous prime is 1012221012073. The next prime is 1012221012149. The reversal of 1012221012120 is 212101222101.

1012221012120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1012221012120.

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, 16380007 + ... + 16441686.

Almost surely, 2^{1012221012120} is an apocalyptic number.

1012221012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012221012120 is an abundant number, since it is smaller than the sum of its proper divisors (2036257926600).

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

1012221012120 is a wasteful number, since it uses less digits than its factorization.

1012221012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32821964 (or 32821960 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1012221012120 its reverse (212101222101), we get a palindrome (1224322234221).

The spelling of 1012221012120 in words is "one trillion, twelve billion, two hundred twenty-one million, twelve thousand, one hundred twenty".