31222021342 has 8 divisors (see below), whose sum is σ = 47174879376. Its totient is φ = 15497061552.

The previous prime is 31222021333. The next prime is 31222021399. The reversal of 31222021342 is 24312022213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56974218 + ... + 56974765.

It is an arithmetic number, because the mean of its divisors is an integer number (5896859922).

Almost surely, 2^31222021342 is an apocalyptic number.

31222021342 is a deficient number, since it is larger than the sum of its proper divisors (15952858034).

31222021342 is a wasteful number, since it uses less digits than its factorization.

31222021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113949122.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31222021342 its reverse (24312022213), we get a palindrome (55534043555).

The spelling of 31222021342 in words is "thirty-one billion, two hundred twenty-two million, twenty-one thousand, three hundred forty-two".