31224421121322 has 64 divisors (see below), whose sum is σ = 76556318662656. Its totient is φ = 8354360160960.

The previous prime is 31224421121291. The next prime is 31224421121339. The reversal of 31224421121322 is 22312112442213.

It is a self number, because there is not a number n which added to its sum of digits gives 31224421121322.

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, 791112858 + ... + 791152325.

It is an arithmetic number, because the mean of its divisors is an integer number (1196192479104).

Almost surely, 2^{31224421121322} is an apocalyptic number.

31224421121322 is an abundant number, since it is smaller than the sum of its proper divisors (45331897541334).

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

31224421121322 is a wasteful number, since it uses less digits than its factorization.

31224421121322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582265235.

The product of its digits is 9216, while the sum is 30.

Adding to 31224421121322 its reverse (22312112442213), we get a palindrome (53536533563535).

The spelling of 31224421121322 in words is "thirty-one trillion, two hundred twenty-four billion, four hundred twenty-one million, one hundred twenty-one thousand, three hundred twenty-two".