22200133210421 has 4 divisors (see below), whose sum is σ = 22215625279692. Its totient is φ = 22184641141152.

The previous prime is 22200133210417. The next prime is 22200133210457. The reversal of 22200133210421 is 12401233100222.

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 8649186902500 + 13550946307921 = 2940950^2 + 3681161^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200133210421 - 2² = 22200133210417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200133210721) 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, 7746032486 + ... + 7746035351.

It is an arithmetic number, because the mean of its divisors is an integer number (5553906319923).

Almost surely, 2^{22200133210421} is an apocalyptic number.

It is an amenable number.

22200133210421 is a deficient number, since it is larger than the sum of its proper divisors (15492069271).

22200133210421 is a wasteful number, since it uses less digits than its factorization.

22200133210421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15492069270.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22200133210421 its reverse (12401233100222), we get a palindrome (34601366310643).

The spelling of 22200133210421 in words is "twenty-two trillion, two hundred billion, one hundred thirty-three million, two hundred ten thousand, four hundred twenty-one".