2312221203012 has 48 divisors (see below), whose sum is σ = 6171188989952. Its totient is φ = 660070438560.

The previous prime is 2312221203001. The next prime is 2312221203037. The reversal of 2312221203012 is 2103021222132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2312221203012.

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, 11655028 + ... + 11851755.

Almost surely, 2^{2312221203012} is an apocalyptic number.

It is an amenable number.

2312221203012 is an abundant number, since it is smaller than the sum of its proper divisors (3858967786940).

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

2312221203012 is a wasteful number, since it uses less digits than its factorization.

2312221203012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23507968 (or 23507966 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2312221203012 its reverse (2103021222132), we get a palindrome (4415242425144).

The spelling of 2312221203012 in words is "two trillion, three hundred twelve billion, two hundred twenty-one million, two hundred three thousand, twelve".