22520164231 has 8 divisors (see below), whose sum is σ = 23875901280. Its totient is φ = 21167874048.

The previous prime is 22520164201. The next prime is 22520164267. The reversal of 22520164231 is 13246102522.

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

It is a cyclic number.

It is not a de Polignac number, because 22520164231 - 2⁷ = 22520164103 is a prime.

It is a super-2 number, since 2×22520164231² (a number of 22 digits) contains 22 as substring.

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 22520164231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520164201) 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, 848251 + ... + 874396.

It is an arithmetic number, because the mean of its divisors is an integer number (2984487660).

Almost surely, 2^22520164231 is an apocalyptic number.

22520164231 is a deficient number, since it is larger than the sum of its proper divisors (1355737049).

22520164231 is a wasteful number, since it uses less digits than its factorization.

22520164231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723433.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 22520164231 its reverse (13246102522), we get a palindrome (35766266753).

The spelling of 22520164231 in words is "twenty-two billion, five hundred twenty million, one hundred sixty-four thousand, two hundred thirty-one".