22520151223 has 16 divisors (see below), whose sum is σ = 23985158400. Its totient is φ = 21083388480.

The previous prime is 22520151217. The next prime is 22520151239. The reversal of 22520151223 is 32215102522.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22520151223 is a prime.

It is a super-2 number, since 2×22520151223² (a number of 22 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 (22520151263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5089390 + ... + 5093812.

It is an arithmetic number, because the mean of its divisors is an integer number (1499072400).

Almost surely, 2^22520151223 is an apocalyptic number.

22520151223 is a deficient number, since it is larger than the sum of its proper divisors (1465007177).

22520151223 is a wasteful number, since it uses less digits than its factorization.

22520151223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 22520151223 its reverse (32215102522), we get a palindrome (54735253745).

The spelling of 22520151223 in words is "twenty-two billion, five hundred twenty million, one hundred fifty-one thousand, two hundred twenty-three".