22212553 has 16 divisors (see below), whose sum is σ = 25039872. Its totient is φ = 19530000.

The previous prime is 22212527. The next prime is 22212569. The reversal of 22212553 is 35521222.

It is a cyclic number.

It is not a de Polignac number, because 22212553 - 2¹⁷ = 22081481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22219553) 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, 71268 + ... + 71578.

It is an arithmetic number, because the mean of its divisors is an integer number (1564992).

Almost surely, 2^22212553 is an apocalyptic number.

It is an amenable number.

22212553 is a deficient number, since it is larger than the sum of its proper divisors (2827319).

22212553 is a wasteful number, since it uses less digits than its factorization.

22212553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 1200, while the sum is 22.

The square root of 22212553 is about 4713.0195204349. The cubic root of 22212553 is about 281.1034391623.

Adding to 22212553 its reverse (35521222), we get a palindrome (57733775).

It can be divided in two parts, 2221 and 2553, that added together give a palindrome (4774).

The spelling of 22212553 in words is "twenty-two million, two hundred twelve thousand, five hundred fifty-three".