31222202020 has 48 divisors (see below), whose sum is σ = 66511368000. Its totient is φ = 12310213760.

The previous prime is 31222201999. The next prime is 31222202027. The reversal of 31222202020 is 2020222213.

It is a junction number, because it is equal to n+sod(n) for n = 31222201985 and 31222202003.

It is not an unprimeable number, because it can be changed into a prime (31222202027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350391 + ... + 430369.

It is an arithmetic number, because the mean of its divisors is an integer number (1385653500).

Almost surely, 2^31222202020 is an apocalyptic number.

It is an amenable number.

31222202020 is an abundant number, since it is smaller than the sum of its proper divisors (35289165980).

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

31222202020 is a wasteful number, since it uses less digits than its factorization.

31222202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80268 (or 80266 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 31222202020 its reverse (2020222213), we get a palindrome (33242424233).

The spelling of 31222202020 in words is "thirty-one billion, two hundred twenty-two million, two hundred two thousand, twenty".