31020010230222 has 80 divisors (see below), whose sum is σ = 76123276170480. Its totient is φ = 9382845299328.

The previous prime is 31020010230113. The next prime is 31020010230259. The reversal of 31020010230222 is 22203201002013.

31020010230222 is a `hidden beast` number, since 3 + 1 + 0 + 200 + 10 + 230 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 31020010230195 and 31020010230204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 124700743 + ... + 124949250.

It is an arithmetic number, because the mean of its divisors is an integer number (951540952131).

Almost surely, 2^{31020010230222} is an apocalyptic number.

31020010230222 is an abundant number, since it is smaller than the sum of its proper divisors (45103265940258).

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

31020010230222 is a wasteful number, since it uses less digits than its factorization.

31020010230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249650079 (or 249650070 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31020010230222 its reverse (22203201002013), we get a palindrome (53223211232235).

The spelling of 31020010230222 in words is "thirty-one trillion, twenty billion, ten million, two hundred thirty thousand, two hundred twenty-two".