21110122200001 has 4 divisors (see below), whose sum is σ = 21791093883904. Its totient is φ = 20429150516100.

The previous prime is 21110122199951. The next prime is 21110122200043. The reversal of 21110122200001 is 10000222101112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21110122200001 - 2¹⁷ = 21110122068929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110122200071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340485841905 + ... + 340485841966.

It is an arithmetic number, because the mean of its divisors is an integer number (5447773470976).

Almost surely, 2^{21110122200001} is an apocalyptic number.

It is an amenable number.

21110122200001 is a deficient number, since it is larger than the sum of its proper divisors (680971683903).

21110122200001 is an equidigital number, since it uses as much as digits as its factorization.

21110122200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680971683902.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21110122200001 its reverse (10000222101112), we get a palindrome (31110344301113).

The spelling of 21110122200001 in words is "twenty-one trillion, one hundred ten billion, one hundred twenty-two million, two hundred thousand, one".