22312522 has 8 divisors (see below), whose sum is σ = 33814116. Its totient is φ = 11041152.

The previous prime is 22312501. The next prime is 22312547. The reversal of 22312522 is 22521322.

It can be written as a sum of positive squares in 2 ways, for example, as 20894041 + 1418481 = 4571^2 + 1191^2 .

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

It is a super-3 number, since 3×22312522³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22312522.

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, 57313 + ... + 57700.

Almost surely, 2^22312522 is an apocalyptic number.

22312522 is a deficient number, since it is larger than the sum of its proper divisors (11501594).

22312522 is a wasteful number, since it uses less digits than its factorization.

22312522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115112.

The product of its digits is 480, while the sum is 19.

The square root of 22312522 is about 4723.6132356492. The cubic root of 22312522 is about 281.5245160354.

Adding to 22312522 its reverse (22521322), we get a palindrome (44833844).

It can be divided in two parts, 2231 and 2522, that added together give a triangular number (4753 = T₉₇).

The spelling of 22312522 in words is "twenty-two million, three hundred twelve thousand, five hundred twenty-two".