22201122212201 has 4 divisors (see below), whose sum is σ = 22468605612432. Its totient is φ = 21933638811972.

The previous prime is 22201122212173. The next prime is 22201122212207. The reversal of 22201122212201 is 10221222110222.

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 22201122212201 - 2⁴² = 17803075701097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201122212207) 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, 133741699991 + ... + 133741700156.

It is an arithmetic number, because the mean of its divisors is an integer number (5617151403108).

Almost surely, 2^{22201122212201} is an apocalyptic number.

It is an amenable number.

22201122212201 is a deficient number, since it is larger than the sum of its proper divisors (267483400231).

22201122212201 is an equidigital number, since it uses as much as digits as its factorization.

22201122212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267483400230.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22201122212201 its reverse (10221222110222), we get a palindrome (32422344322423).

The spelling of 22201122212201 in words is "twenty-two trillion, two hundred one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred one".