22002000100021 has 16 divisors (see below), whose sum is σ = 22672872730368. Its totient is φ = 21337877433600.

The previous prime is 22002000099953. The next prime is 22002000100037. The reversal of 22002000100021 is 12000100020022.

It is a cyclic number.

It is not a de Polignac number, because 22002000100021 - 2¹³ = 22002000091829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002000099980 and 22002000100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002000100081) 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 15 ways as a sum of consecutive naturals, for example, 2687185 + ... + 7157161.

It is an arithmetic number, because the mean of its divisors is an integer number (1417054545648).

Almost surely, 2^{22002000100021} is an apocalyptic number.

It is an amenable number.

22002000100021 is a deficient number, since it is larger than the sum of its proper divisors (670872630347).

22002000100021 is a wasteful number, since it uses less digits than its factorization.

22002000100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470732.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22002000100021 its reverse (12000100020022), we get a palindrome (34002100120043).

The spelling of 22002000100021 in words is "twenty-two trillion, two billion, one hundred thousand, twenty-one".