22550212 has 18 divisors (see below), whose sum is σ = 41257118. Its totient is φ = 10783872.

The previous prime is 22550173. The next prime is 22550219. The reversal of 22550212 is 21205522.

It can be written as a sum of positive squares in only one way, i.e., 13883076 + 8667136 = 3726^2 + 2944^2 .

It is a super-2 number, since 2×22550212² = 1017024122489888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22550212.

It is not an unprimeable number, because it can be changed into a prime (22550219) 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, 3213 + ... + 7444.

Almost surely, 2^22550212 is an apocalyptic number.

It is an amenable number.

22550212 is a deficient number, since it is larger than the sum of its proper divisors (18706906).

22550212 is a wasteful number, since it uses less digits than its factorization.

22550212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707 (or 10682 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22550212 is about 4748.7063501547. The cubic root of 22550212 is about 282.5206584209.

Adding to 22550212 its reverse (21205522), we get a palindrome (43755734).

The spelling of 22550212 in words is "twenty-two million, five hundred fifty thousand, two hundred twelve".