210122202020 has 72 divisors (see below), whose sum is σ = 445257251712. Its totient is φ = 83292874560.

The previous prime is 210122202013. The next prime is 210122202049. The reversal of 210122202020 is 20202221012.

It is a junction number, because it is equal to n+sod(n) for n = 210122201986 and 210122202004.

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 23 ways as a sum of consecutive naturals, for example, 326783819 + ... + 326784461.

It is an arithmetic number, because the mean of its divisors is an integer number (6184128496).

Almost surely, 2^210122202020 is an apocalyptic number.

210122202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122202020 is an abundant number, since it is smaller than the sum of its proper divisors (235135049692).

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

210122202020 is a wasteful number, since it uses less digits than its factorization.

210122202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210122202020 its reverse (20202221012), we get a palindrome (230324423032).

The spelling of 210122202020 in words is "two hundred ten billion, one hundred twenty-two million, two hundred two thousand, twenty".