202021000122 has 32 divisors (see below), whose sum is σ = 408797316864. Its totient is φ = 66550248000.

The previous prime is 202021000117. The next prime is 202021000141. The reversal of 202021000122 is 221000120202.

It is a junction number, because it is equal to n+sod(n) for n = 202021000098 and 202021000107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19743 + ... + 635949.

It is an arithmetic number, because the mean of its divisors is an integer number (12774916152).

Almost surely, 2^202021000122 is an apocalyptic number.

202021000122 is an abundant number, since it is smaller than the sum of its proper divisors (206776316742).

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

202021000122 is a wasteful number, since it uses less digits than its factorization.

202021000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616854.

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

Adding to 202021000122 its reverse (221000120202), we get a palindrome (423021120324).

The spelling of 202021000122 in words is "two hundred two billion, twenty-one million, one hundred twenty-two", and thus it is an aban number.