21011300200122 has 16 divisors (see below), whose sum is σ = 42554532051840. Its totient is φ = 6915111458112.

The previous prime is 21011300200087. The next prime is 21011300200183. The reversal of 21011300200122 is 22100200311012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22163818303 + ... + 22163819250.

It is an arithmetic number, because the mean of its divisors is an integer number (2659658253240).

Almost surely, 2^{21011300200122} is an apocalyptic number.

21011300200122 is an abundant number, since it is smaller than the sum of its proper divisors (21543231851718).

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

21011300200122 is a wasteful number, since it uses less digits than its factorization.

21011300200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44327637637.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21011300200122 its reverse (22100200311012), we get a palindrome (43111500511134).

The spelling of 21011300200122 in words is "twenty-one trillion, eleven billion, three hundred million, two hundred thousand, one hundred twenty-two".