22131232301 has 4 divisors (see below), whose sum is σ = 22602109632. Its totient is φ = 21660354972.

The previous prime is 22131232223. The next prime is 22131232337. The reversal of 22131232301 is 10323213122.

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 a de Polignac number, because none of the positive numbers 2^k-22131232301 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 (22131232801) 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, 235438595 + ... + 235438688.

It is an arithmetic number, because the mean of its divisors is an integer number (5650527408).

Almost surely, 2^22131232301 is an apocalyptic number.

It is an amenable number.

22131232301 is a deficient number, since it is larger than the sum of its proper divisors (470877331).

22131232301 is an equidigital number, since it uses as much as digits as its factorization.

22131232301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470877330.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22131232301 its reverse (10323213122), we get a palindrome (32454445423).

The spelling of 22131232301 in words is "twenty-two billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred one".