22521622 has 8 divisors (see below), whose sum is σ = 33854400. Its totient is φ = 11236824.

The previous prime is 22521619. The next prime is 22521643. The reversal of 22521622 is 22612522.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 22521593 and 22521602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10797 + ... + 12712.

It is an arithmetic number, because the mean of its divisors is an integer number (4231800).

Almost surely, 2^22521622 is an apocalyptic number.

22521622 is a deficient number, since it is larger than the sum of its proper divisors (11332778).

22521622 is a wasteful number, since it uses less digits than its factorization.

22521622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23990.

The product of its digits is 960, while the sum is 22.

The square root of 22521622 is about 4745.6951018792. The cubic root of 22521622 is about 282.4012111834.

The spelling of 22521622 in words is "twenty-two million, five hundred twenty-one thousand, six hundred twenty-two".