22120412 has 12 divisors (see below), whose sum is σ = 38849496. Its totient is φ = 11020560.

The previous prime is 22120393. The next prime is 22120433. The reversal of 22120412 is 21402122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8639 + ... + 10902.

It is an arithmetic number, because the mean of its divisors is an integer number (3237458).

Almost surely, 2^22120412 is an apocalyptic number.

It is an amenable number.

22120412 is a deficient number, since it is larger than the sum of its proper divisors (16729084).

22120412 is a wasteful number, since it uses less digits than its factorization.

22120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19828 (or 19826 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22120412 is about 4703.2342063733. The cubic root of 22120412 is about 280.7142140740.

Adding to 22120412 its reverse (21402122), we get a palindrome (43522534).

The spelling of 22120412 in words is "twenty-two million, one hundred twenty thousand, four hundred twelve".