31022112204 has 36 divisors (see below), whose sum is σ = 79361796696. Its totient is φ = 10216116288.

The previous prime is 31022112197. The next prime is 31022112211. The reversal of 31022112204 is 40221122013.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31022112197) and next prime (31022112211).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5188129 + ... + 5194104.

Almost surely, 2^31022112204 is an apocalyptic number.

It is an amenable number.

31022112204 is an abundant number, since it is smaller than the sum of its proper divisors (48339684492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31022112204 is a wasteful number, since it uses less digits than its factorization.

31022112204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10382326 (or 10382321 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31022112204 its reverse (40221122013), we get a palindrome (71243234217).

The spelling of 31022112204 in words is "thirty-one billion, twenty-two million, one hundred twelve thousand, two hundred four".