22724122 has 8 divisors (see below), whose sum is σ = 34595136. Its totient is φ = 11192412.

The previous prime is 22724101. The next prime is 22724123. The reversal of 22724122 is 22142722.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22724093 and 22724102.

It is not an unprimeable number, because it can be changed into a prime (22724123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84658 + ... + 84925.

It is an arithmetic number, because the mean of its divisors is an integer number (4324392).

Almost surely, 2^22724122 is an apocalyptic number.

22724122 is a deficient number, since it is larger than the sum of its proper divisors (11871014).

22724122 is a wasteful number, since it uses less digits than its factorization.

22724122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169652.

The product of its digits is 896, while the sum is 22.

The square root of 22724122 is about 4766.9824837102. The cubic root of 22724122 is about 283.2450773177.

Adding to 22724122 its reverse (22142722), we get a palindrome (44866844).

The spelling of 22724122 in words is "twenty-two million, seven hundred twenty-four thousand, one hundred twenty-two".