202122041020 has 12 divisors (see below), whose sum is σ = 424456286184. Its totient is φ = 80848816400.

The previous prime is 202122040999. The next prime is 202122041057. The reversal of 202122041020 is 20140221202.

It is a junction number, because it is equal to n+sod(n) for n = 202122040985 and 202122041003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5053051006 + ... + 5053051045.

It is an arithmetic number, because the mean of its divisors is an integer number (35371357182).

Almost surely, 2^202122041020 is an apocalyptic number.

202122041020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122041020 is an abundant number, since it is smaller than the sum of its proper divisors (222334245164).

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

202122041020 is a wasteful number, since it uses less digits than its factorization.

202122041020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106102060 (or 10106102058 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202122041020 its reverse (20140221202), we get a palindrome (222262262222).

The spelling of 202122041020 in words is "two hundred two billion, one hundred twenty-two million, forty-one thousand, twenty".