210002000122128 has 40 divisors (see below), whose sum is σ = 548098003767328. Its totient is φ = 69279010348032.

The previous prime is 210002000122069. The next prime is 210002000122129. The reversal of 210002000122128 is 821221000200012.

It is not an unprimeable number, because it can be changed into a prime (210002000122129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22551756526 + ... + 22551765837.

Almost surely, 2^{210002000122128} is an apocalyptic number.

It is an amenable number.

210002000122128 is an abundant number, since it is smaller than the sum of its proper divisors (338096003645200).

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

210002000122128 is a wasteful number, since it uses less digits than its factorization.

210002000122128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45103522471 (or 45103522465 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The spelling of 210002000122128 in words is "two hundred ten trillion, two billion, one hundred twenty-two thousand, one hundred twenty-eight".