1012331001220 has 96 divisors (see below), whose sum is σ = 2676709276416. Its totient is φ = 312407616000.

The previous prime is 1012331001151. The next prime is 1012331001263. The reversal of 1012331001220 is 221001332101.

1012331001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1012331001194 and 1012331001203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3098707 + ... + 3409786.

It is an arithmetic number, because the mean of its divisors is an integer number (27882388296).

Almost surely, 2^{1012331001220} is an apocalyptic number.

1012331001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012331001220 is an abundant number, since it is smaller than the sum of its proper divisors (1664378275196).

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

1012331001220 is a wasteful number, since it uses less digits than its factorization.

1012331001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6508621 (or 6508619 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1012331001220 its reverse (221001332101), we get a palindrome (1233332333321).

The spelling of 1012331001220 in words is "one trillion, twelve billion, three hundred thirty-one million, one thousand, two hundred twenty".