22131122 has 8 divisors (see below), whose sum is σ = 35750316. Its totient is φ = 10214352.

The previous prime is 22131113. The next prime is 22131133. The reversal of 22131122 is 22113122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20620681 + 1510441 = 4541^2 + 1229^2 .

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 = 22131097 and 22131106.

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, 425573 + ... + 425624.

Almost surely, 2^22131122 is an apocalyptic number.

22131122 is a deficient number, since it is larger than the sum of its proper divisors (13619194).

22131122 is a wasteful number, since it uses less digits than its factorization.

22131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851212.

The product of its digits is 48, while the sum is 14.

The square root of 22131122 is about 4704.3726468042. The cubic root of 22131122 is about 280.7595110627.

Adding to 22131122 its reverse (22113122), we get a palindrome (44244244).

The spelling of 22131122 in words is "twenty-two million, one hundred thirty-one thousand, one hundred twenty-two".