22345212 has 12 divisors (see below), whose sum is σ = 52138856. Its totient is φ = 7448400.

The previous prime is 22345207. The next prime is 22345231. The reversal of 22345212 is 21254322.

It is a tau number, because it is divible by the number of its divisors (12).

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, 931039 + ... + 931062.

Almost surely, 2^22345212 is an apocalyptic number.

It is an amenable number.

22345212 is an abundant number, since it is smaller than the sum of its proper divisors (29793644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22345212 is a wasteful number, since it uses less digits than its factorization.

22345212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862108 (or 1862106 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 22345212 is about 4727.0722440005. The cubic root of 22345212 is about 281.6619358160.

Adding to 22345212 its reverse (21254322), we get a palindrome (43599534).

The spelling of 22345212 in words is "twenty-two million, three hundred forty-five thousand, two hundred twelve".