22213622 has 16 divisors (see below), whose sum is σ = 35501760. Its totient is φ = 10393992.

The previous prime is 22213621. The next prime is 22213627. The reversal of 22213622 is 22631222.

It is a junction number, because it is equal to n+sod(n) for n = 22213594 and 22213603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213621) 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, 368 + ... + 6675.

It is an arithmetic number, because the mean of its divisors is an integer number (2218860).

Almost surely, 2^22213622 is an apocalyptic number.

22213622 is a deficient number, since it is larger than the sum of its proper divisors (13288138).

22213622 is a wasteful number, since it uses less digits than its factorization.

22213622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147.

The product of its digits is 576, while the sum is 20.

The square root of 22213622 is about 4713.1329283185. The cubic root of 22213622 is about 281.1079485457.

Adding to 22213622 its reverse (22631222), we get a palindrome (44844844).

It can be divided in two parts, 2 and 2213622, that multiplied together give a palindrome (4427244).

The spelling of 22213622 in words is "twenty-two million, two hundred thirteen thousand, six hundred twenty-two".