11622213 has 6 divisors (see below), whose sum is σ = 16787654. Its totient is φ = 7748136.

The previous prime is 11622187. The next prime is 11622217. The reversal of 11622213 is 31222611.

11622213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11009124 + 613089 = 3318^2 + 783^2 .

It is not a de Polignac number, because 11622213 - 2⁸ = 11621957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11622217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645670 + ... + 645687.

Almost surely, 2^11622213 is an apocalyptic number.

It is an amenable number.

11622213 is a deficient number, since it is larger than the sum of its proper divisors (5165441).

11622213 is a wasteful number, since it uses less digits than its factorization.

11622213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291363 (or 1291360 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 11622213 is about 3409.1366942380. The cubic root of 11622213 is about 226.5146402244.

Adding to 11622213 its reverse (31222611), we get a palindrome (42844824).

It can be divided in two parts, 1162 and 2213, that added together give a cube (3375 = 15³).

The spelling of 11622213 in words is "eleven million, six hundred twenty-two thousand, two hundred thirteen".