202210021020 has 48 divisors (see below), whose sum is σ = 647072068608. Its totient is φ = 46219433280.

The previous prime is 202210020967. The next prime is 202210021043. The reversal of 202210021020 is 20120012202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202210020987 and 202210021005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240725796 + ... + 240726635.

It is an arithmetic number, because the mean of its divisors is an integer number (13480668096).

Almost surely, 2^202210021020 is an apocalyptic number.

202210021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202210021020 is an abundant number, since it is smaller than the sum of its proper divisors (444862047588).

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

202210021020 is a wasteful number, since it uses less digits than its factorization.

202210021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481452450 (or 481452448 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202210021020 its reverse (20120012202), we get a palindrome (222330033222).

The spelling of 202210021020 in words is "two hundred two billion, two hundred ten million, twenty-one thousand, twenty".