22124212 has 24 divisors (see below), whose sum is σ = 42934752. Its totient is φ = 9890400.

The previous prime is 22124209. The next prime is 22124251. The reversal of 22124212 is 21242122.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (1788948).

Almost surely, 2^22124212 is an apocalyptic number.

22124212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22124212 is a deficient number, since it is larger than the sum of its proper divisors (20810540).

22124212 is a wasteful number, since it uses less digits than its factorization.

22124212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8319 (or 8317 counting only the distinct ones).

The product of its digits is 128, while the sum is 16.

The square root of 22124212 is about 4703.6381663559. The cubic root of 22124212 is about 280.7302875079.

Adding to 22124212 its reverse (21242122), we get a palindrome (43366334).

It can be divided in two parts, 2 and 2124212, that multiplied together give a palindrome (4248424).

The spelling of 22124212 in words is "twenty-two million, one hundred twenty-four thousand, two hundred twelve".