22011412 has 12 divisors (see below), whose sum is σ = 38645236. Its totient is φ = 10969920.

The previous prime is 22011403. The next prime is 22011427. The reversal of 22011412 is 21411022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1976836 + 20034576 = 1406^2 + 4476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22011392 and 22011401.

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, 7539 + ... + 10042.

Almost surely, 2^22011412 is an apocalyptic number.

It is an amenable number.

22011412 is a deficient number, since it is larger than the sum of its proper divisors (16633824).

22011412 is a wasteful number, since it uses less digits than its factorization.

22011412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17898 (or 17896 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 22011412 is about 4691.6321253909. The cubic root of 22011412 is about 280.2523744979.

Adding to 22011412 its reverse (21411022), we get a palindrome (43422434).

The spelling of 22011412 in words is "twenty-two million, eleven thousand, four hundred twelve".