22202011000021 has 4 divisors (see below), whose sum is σ = 22205330189100. Its totient is φ = 22198691810944.

The previous prime is 22202010999997. The next prime is 22202011000067. The reversal of 22202011000021 is 12000011020222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13831630428100 + 8370380571921 = 3719090^2 + 2893161^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202011000021 - 2²⁵ = 22201977445589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202010999965 and 22202011000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202011000621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1659584506 + ... + 1659597883.

It is an arithmetic number, because the mean of its divisors is an integer number (5551332547275).

Almost surely, 2^{22202011000021} is an apocalyptic number.

It is an amenable number.

22202011000021 is a deficient number, since it is larger than the sum of its proper divisors (3319189079).

22202011000021 is an equidigital number, since it uses as much as digits as its factorization.

22202011000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319189078.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22202011000021 its reverse (12000011020222), we get a palindrome (34202022020243).

The spelling of 22202011000021 in words is "twenty-two trillion, two hundred two billion, eleven million, twenty-one", and thus it is an aban number.