2221302031312 has 160 divisors (see below), whose sum is σ = 5332938670080. Its totient is φ = 872793792000.

The previous prime is 2221302031303. The next prime is 2221302031327. The reversal of 2221302031312 is 2131302031222.

It is a congruent number.

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, 683265687 + ... + 683268937.

It is an arithmetic number, because the mean of its divisors is an integer number (33330866688).

Almost surely, 2^{2221302031312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221302031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2666469335040).

2221302031312 is an abundant number, since it is smaller than the sum of its proper divisors (3111636638768).

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

2221302031312 is a wasteful number, since it uses less digits than its factorization.

2221302031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6321 (or 6315 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2221302031312 its reverse (2131302031222), we get a palindrome (4352604062534).

The spelling of 2221302031312 in words is "two trillion, two hundred twenty-one billion, three hundred two million, thirty-one thousand, three hundred twelve".