31402324222 has 4 divisors (see below), whose sum is σ = 47103486336. Its totient is φ = 15701162110.

The previous prime is 31402324193. The next prime is 31402324253. The reversal of 31402324222 is 22242320413.

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

It is a super-2 number, since 2×31402324222² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 7850581054 + ... + 7850581057.

It is an arithmetic number, because the mean of its divisors is an integer number (11775871584).

Almost surely, 2^31402324222 is an apocalyptic number.

31402324222 is a deficient number, since it is larger than the sum of its proper divisors (15701162114).

31402324222 is a wasteful number, since it uses less digits than its factorization.

31402324222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15701162113.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31402324222 its reverse (22242320413), we get a palindrome (53644644635).

The spelling of 31402324222 in words is "thirty-one billion, four hundred two million, three hundred twenty-four thousand, two hundred twenty-two".