21120200122001 has 8 divisors (see below), whose sum is σ = 21135368918400. Its totient is φ = 21105036424080.

The previous prime is 21120200121991. The next prime is 21120200122009. The reversal of 21120200122001 is 10022100202112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21120200122001 - 2³⁸ = 20845322215057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21120200122009) 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, 7032680 + ... + 9575958.

It is an arithmetic number, because the mean of its divisors is an integer number (2641921114800).

Almost surely, 2^{21120200122001} is an apocalyptic number.

It is an amenable number.

21120200122001 is a deficient number, since it is larger than the sum of its proper divisors (15168796399).

21120200122001 is a wasteful number, since it uses less digits than its factorization.

21120200122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549239.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21120200122001 its reverse (10022100202112), we get a palindrome (31142300324113).

The spelling of 21120200122001 in words is "twenty-one trillion, one hundred twenty billion, two hundred million, one hundred twenty-two thousand, one".