22123301222431 has 4 divisors (see below), whose sum is σ = 23424671882592. Its totient is φ = 20821930562272.

The previous prime is 22123301222387. The next prime is 22123301222437. The reversal of 22123301222431 is 13422210332122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22123301222431 - 2²³ = 22123292833823 is a prime.

It is a super-3 number, since 3×22123301222431³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22123301222431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123301222437) 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, 650685330055 + ... + 650685330088.

It is an arithmetic number, because the mean of its divisors is an integer number (5856167970648).

Almost surely, 2^{22123301222431} is an apocalyptic number.

22123301222431 is a deficient number, since it is larger than the sum of its proper divisors (1301370660161).

22123301222431 is a wasteful number, since it uses less digits than its factorization.

22123301222431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301370660160.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 22123301222431 its reverse (13422210332122), we get a palindrome (35545511554553).

The spelling of 22123301222431 in words is "twenty-two trillion, one hundred twenty-three billion, three hundred one million, two hundred twenty-two thousand, four hundred thirty-one".