31122022102 has 4 divisors (see below), whose sum is σ = 46683033156. Its totient is φ = 15561011050.

The previous prime is 31122022081. The next prime is 31122022117. The reversal of 31122022102 is 20122022113.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7780505524 + ... + 7780505527.

It is an arithmetic number, because the mean of its divisors is an integer number (11670758289).

Almost surely, 2^31122022102 is an apocalyptic number.

31122022102 is a deficient number, since it is larger than the sum of its proper divisors (15561011054).

31122022102 is a wasteful number, since it uses less digits than its factorization.

31122022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15561011053.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31122022102 its reverse (20122022113), we get a palindrome (51244044215).

The spelling of 31122022102 in words is "thirty-one billion, one hundred twenty-two million, twenty-two thousand, one hundred two".