31222021341 has 12 divisors (see below), whose sum is σ = 48425992512. Its totient is φ = 17841154968.

The previous prime is 31222021333. The next prime is 31222021399. The reversal of 31222021341 is 14312022213.

It is not a de Polignac number, because 31222021341 - 2³ = 31222021333 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222021841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106197205 + ... + 106197498.

It is an arithmetic number, because the mean of its divisors is an integer number (4035499376).

Almost surely, 2^31222021341 is an apocalyptic number.

It is an amenable number.

31222021341 is a deficient number, since it is larger than the sum of its proper divisors (17203971171).

31222021341 is a wasteful number, since it uses less digits than its factorization.

31222021341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212394720 (or 212394713 counting only the distinct ones).

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

Adding to 31222021341 its reverse (14312022213), we get a palindrome (45534043554).

The spelling of 31222021341 in words is "thirty-one billion, two hundred twenty-two million, twenty-one thousand, three hundred forty-one".