22253213 has 8 divisors (see below), whose sum is σ = 23502528. Its totient is φ = 21027424.

The previous prime is 22253197. The next prime is 22253239. The reversal of 22253213 is 31235222.

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

It is a cyclic number.

It is not a de Polignac number, because 22253213 - 2⁴ = 22253197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22253263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3920 + ... + 7737.

It is an arithmetic number, because the mean of its divisors is an integer number (2937816).

Almost surely, 2^22253213 is an apocalyptic number.

22253213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22253213 is a deficient number, since it is larger than the sum of its proper divisors (1249315).

22253213 is a wasteful number, since it uses less digits than its factorization.

22253213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11763.

The product of its digits is 720, while the sum is 20.

The square root of 22253213 is about 4717.3311310528. The cubic root of 22253213 is about 281.2748542315.

Adding to 22253213 its reverse (31235222), we get a palindrome (53488435).

Subtracting 22253213 from its reverse (31235222), we obtain a square (8982009 = 2997²).

It can be divided in two parts, 222 and 53213, that added together give a palindrome (53435).

The spelling of 22253213 in words is "twenty-two million, two hundred fifty-three thousand, two hundred thirteen".