22120712 has 16 divisors (see below), whose sum is σ = 43659600. Its totient is φ = 10478160.

The previous prime is 22120697. The next prime is 22120729. The reversal of 22120712 is 21702122.

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, 72614 + ... + 72917.

It is an arithmetic number, because the mean of its divisors is an integer number (2728725).

Almost surely, 2^22120712 is an apocalyptic number.

It is an amenable number.

22120712 is a deficient number, since it is larger than the sum of its proper divisors (21538888).

22120712 is a wasteful number, since it uses less digits than its factorization.

22120712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145556 (or 145552 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 22120712 is about 4703.2660992123. The cubic root of 22120712 is about 280.7154830963.

Adding to 22120712 its reverse (21702122), we get a palindrome (43822834).

It can be divided in two parts, 2 and 2120712, that multiplied together give a palindrome (4241424).

The spelling of 22120712 in words is "twenty-two million, one hundred twenty thousand, seven hundred twelve".