22204133242121 has 4 divisors (see below), whose sum is σ = 22535538215952. Its totient is φ = 21872728268292.

The previous prime is 22204133242103. The next prime is 22204133242157. The reversal of 22204133242121 is 12124233140222.

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 22204133242121 - 2³⁴ = 22186953372937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22204133242321) 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, 165702486815 + ... + 165702486948.

It is an arithmetic number, because the mean of its divisors is an integer number (5633884553988).

Almost surely, 2^{22204133242121} is an apocalyptic number.

It is an amenable number.

22204133242121 is a deficient number, since it is larger than the sum of its proper divisors (331404973831).

22204133242121 is an equidigital number, since it uses as much as digits as its factorization.

22204133242121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331404973830.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 22204133242121 its reverse (12124233140222), we get a palindrome (34328366382343).

The spelling of 22204133242121 in words is "twenty-two trillion, two hundred four billion, one hundred thirty-three million, two hundred forty-two thousand, one hundred twenty-one".