22154233522 has 8 divisors (see below), whose sum is σ = 33275020572. Its totient is φ = 11062560000.

The previous prime is 22154233513. The next prime is 22154233531. The reversal of 22154233522 is 22533245122.

It is an interprime number because it is at equal distance from previous prime (22154233513) and next prime (22154233531).

It can be written as a sum of positive squares in 2 ways, for example, as 16566521521 + 5587712001 = 128711^2 + 74751^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7276479 + ... + 7279522.

Almost surely, 2^22154233522 is an apocalyptic number.

22154233522 is a deficient number, since it is larger than the sum of its proper divisors (11120787050).

22154233522 is a wasteful number, since it uses less digits than its factorization.

22154233522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556764.

The product of its digits is 28800, while the sum is 31.

Adding to 22154233522 its reverse (22533245122), we get a palindrome (44687478644).

The spelling of 22154233522 in words is "twenty-two billion, one hundred fifty-four million, two hundred thirty-three thousand, five hundred twenty-two".