22421313231 has 8 divisors (see below), whose sum is σ = 29895776304. Its totient is φ = 14947196160.

The previous prime is 22421313197. The next prime is 22421313241. The reversal of 22421313231 is 13231312422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22421313231 - 2¹⁴ = 22421296847 is a prime.

It is a super-2 number, since 2×22421313231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421313241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206161 + ... + 295541.

It is an arithmetic number, because the mean of its divisors is an integer number (3736972038).

Almost surely, 2^22421313231 is an apocalyptic number.

22421313231 is a deficient number, since it is larger than the sum of its proper divisors (7474463073).

22421313231 is an equidigital number, since it uses as much as digits as its factorization.

22421313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173001.

The product of its digits is 1728, while the sum is 24.

Adding to 22421313231 its reverse (13231312422), we get a palindrome (35652625653).

The spelling of 22421313231 in words is "twenty-two billion, four hundred twenty-one million, three hundred thirteen thousand, two hundred thirty-one".