31213233322022 has 4 divisors (see below), whose sum is σ = 46819849983036. Its totient is φ = 15606616661010.

The previous prime is 31213233322003. The next prime is 31213233322027. The reversal of 31213233322022 is 22022333231213.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213233322027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7803308330504 + ... + 7803308330507.

It is an arithmetic number, because the mean of its divisors is an integer number (11704962495759).

Almost surely, 2^{31213233322022} is an apocalyptic number.

31213233322022 is a deficient number, since it is larger than the sum of its proper divisors (15606616661014).

31213233322022 is a wasteful number, since it uses less digits than its factorization.

31213233322022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15606616661013.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31213233322022 its reverse (22022333231213), we get a palindrome (53235566553235).

The spelling of 31213233322022 in words is "thirty-one trillion, two hundred thirteen billion, two hundred thirty-three million, three hundred twenty-two thousand, twenty-two".