21113000222201 has 8 divisors (see below), whose sum is σ = 21615750864264. Its totient is φ = 20615302350720.

The previous prime is 21113000222183. The next prime is 21113000222213. The reversal of 21113000222201 is 10222200031112.

It can be written as a sum of positive squares in 4 ways, for example, as 1548343801 + 21111451878400 = 39349^2 + 4594720^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21113000222201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21113000222201.

It is not an unprimeable number, because it can be changed into a prime (21113000422201) 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, 1263184190 + ... + 1263200903.

It is an arithmetic number, because the mean of its divisors is an integer number (2701968858033).

Almost surely, 2^{21113000222201} is an apocalyptic number.

It is an amenable number.

21113000222201 is a deficient number, since it is larger than the sum of its proper divisors (502750642063).

21113000222201 is a wasteful number, since it uses less digits than its factorization.

21113000222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526385291.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21113000222201 its reverse (10222200031112), we get a palindrome (31335200253313).

The spelling of 21113000222201 in words is "twenty-one trillion, one hundred thirteen billion, two hundred twenty-two thousand, two hundred one".