22132123220401 has 4 divisors (see below), whose sum is σ = 22132680281332. Its totient is φ = 22131566159472.

The previous prime is 22132123220377. The next prime is 22132123220443. The reversal of 22132123220401 is 10402232123122.

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 17260501739776 + 4871621480625 = 4154576^2 + 2207175^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132123220401 - 2⁹ = 22132123219889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22132123220461) 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, 278470866 + ... + 278550331.

It is an arithmetic number, because the mean of its divisors is an integer number (5533170070333).

Almost surely, 2^{22132123220401} is an apocalyptic number.

It is an amenable number.

22132123220401 is a deficient number, since it is larger than the sum of its proper divisors (557060931).

22132123220401 is an equidigital number, since it uses as much as digits as its factorization.

22132123220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557060930.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 22132123220401 its reverse (10402232123122), we get a palindrome (32534355343523).

The spelling of 22132123220401 in words is "twenty-two trillion, one hundred thirty-two billion, one hundred twenty-three million, two hundred twenty thousand, four hundred one".