31224020204422 has 16 divisors (see below), whose sum is σ = 48364921432080. Its totient is φ = 15109041562272.

The previous prime is 31224020204407. The next prime is 31224020204449. The reversal of 31224020204422 is 22440202042213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665449353 + ... + 1665468100.

It is an arithmetic number, because the mean of its divisors is an integer number (3022807589505).

Almost surely, 2^{31224020204422} is an apocalyptic number.

31224020204422 is a deficient number, since it is larger than the sum of its proper divisors (17140901227658).

31224020204422 is a wasteful number, since it uses less digits than its factorization.

31224020204422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330917607.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 31224020204422 its reverse (22440202042213), we get a palindrome (53664222246635).

The spelling of 31224020204422 in words is "thirty-one trillion, two hundred twenty-four billion, twenty million, two hundred four thousand, four hundred twenty-two".