22212369 has 9 divisors (see below), whose sum is σ = 32104969. Its totient is φ = 14798820.

The previous prime is 22212343. The next prime is 22212373. The reversal of 22212369 is 96321222.

The square root of 22212369 is 4713.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is a de Polignac number, because none of the positive numbers 2^k-22212369 is a prime.

It is a super-2 number, since 2×22212369² = 986778673184322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13354 + ... + 14924.

Almost surely, 2^22212369 is an apocalyptic number.

22212369 is the 4713-rd square number.

22212369 is the 2357-th centered octagonal number.

It is an amenable number.

22212369 is a deficient number, since it is larger than the sum of its proper divisors (9892600).

22212369 is an frugal number, since it uses more digits than its factorization.

22212369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 1574 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The cubic root of 22212369 is about 281.1026629769.

The spelling of 22212369 in words is "twenty-two million, two hundred twelve thousand, three hundred sixty-nine".