31222213034 has 4 divisors (see below), whose sum is σ = 46833319554. Its totient is φ = 15611106516.

The previous prime is 31222213021. The next prime is 31222213051. The reversal of 31222213034 is 43031222213.

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

It can be written as a sum of positive squares in only one way, i.e., 20065572409 + 11156640625 = 141653^2 + 105625^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7805553257 + ... + 7805553260.

Almost surely, 2^31222213034 is an apocalyptic number.

31222213034 is a deficient number, since it is larger than the sum of its proper divisors (15611106520).

31222213034 is a wasteful number, since it uses less digits than its factorization.

31222213034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15611106519.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31222213034 its reverse (43031222213), we get a palindrome (74253435247).

The spelling of 31222213034 in words is "thirty-one billion, two hundred twenty-two million, two hundred thirteen thousand, thirty-four".