31012243222 has 8 divisors (see below), whose sum is σ = 46520476200. Its totient is φ = 15505417824.

The previous prime is 31012243193. The next prime is 31012243313. The reversal of 31012243222 is 22234221013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31012243193 and 31012243202.

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, 294972 + ... + 386047.

It is an arithmetic number, because the mean of its divisors is an integer number (5815059525).

Almost surely, 2^31012243222 is an apocalyptic number.

31012243222 is a deficient number, since it is larger than the sum of its proper divisors (15508232978).

31012243222 is a wasteful number, since it uses less digits than its factorization.

31012243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703790.

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

Adding to 31012243222 its reverse (22234221013), we get a palindrome (53246464235).

The spelling of 31012243222 in words is "thirty-one billion, twelve million, two hundred forty-three thousand, two hundred twenty-two".