22200010102021 has 4 divisors (see below), whose sum is σ = 22200130468044. Its totient is φ = 22199889736000.

The previous prime is 22200010102013. The next prime is 22200010102063. The reversal of 22200010102021 is 12020101000222.

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 19602658845121 + 2597351256900 = 4427489^2 + 1611630^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200010102021 - 2³ = 22200010102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200010101992 and 22200010102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200010142021) 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, 59905930 + ... + 60275371.

It is an arithmetic number, because the mean of its divisors is an integer number (5550032617011).

Almost surely, 2^{22200010102021} is an apocalyptic number.

It is an amenable number.

22200010102021 is a deficient number, since it is larger than the sum of its proper divisors (120366023).

22200010102021 is a wasteful number, since it uses less digits than its factorization.

22200010102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120366022.

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

Adding to 22200010102021 its reverse (12020101000222), we get a palindrome (34220111102243).

The spelling of 22200010102021 in words is "twenty-two trillion, two hundred billion, ten million, one hundred two thousand, twenty-one".