31222224401013 has 16 divisors (see below), whose sum is σ = 46261782907200. Its totient is φ = 20811830226480.

The previous prime is 31222224400877. The next prime is 31222224401083. The reversal of 31222224401013 is 31010442222213.

31222224401013 is a `hidden beast` number, since 3 + 1 + 2 + 22 + 224 + 401 + 0 + 13 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-31222224401013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222224401083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82753878 + ... + 83130311.

It is an arithmetic number, because the mean of its divisors is an integer number (2891361431700).

Almost surely, 2^{31222224401013} is an apocalyptic number.

It is an amenable number.

31222224401013 is a deficient number, since it is larger than the sum of its proper divisors (15039558506187).

31222224401013 is a wasteful number, since it uses less digits than its factorization.

31222224401013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165891169 (or 165891163 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31222224401013 its reverse (31010442222213), we get a palindrome (62232666623226).

The spelling of 31222224401013 in words is "thirty-one trillion, two hundred twenty-two billion, two hundred twenty-four million, four hundred one thousand, thirteen".