22103321231 has 4 divisors (see below), whose sum is σ = 22105390200. Its totient is φ = 22101252264.

The previous prime is 22103321221. The next prime is 22103321249. The reversal of 22103321231 is 13212330122.

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 22103321231 - 2¹⁰ = 22103320207 is a prime.

It is a super-2 number, since 2×22103321231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103321221) 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, 1018376 + ... + 1039853.

It is an arithmetic number, because the mean of its divisors is an integer number (5526347550).

Almost surely, 2^22103321231 is an apocalyptic number.

22103321231 is a deficient number, since it is larger than the sum of its proper divisors (2068969).

22103321231 is a wasteful number, since it uses less digits than its factorization.

22103321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068968.

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

Adding to 22103321231 its reverse (13212330122), we get a palindrome (35315651353).

The spelling of 22103321231 in words is "twenty-two billion, one hundred three million, three hundred twenty-one thousand, two hundred thirty-one".