22116770 has 32 divisors (see below), whose sum is σ = 43590960. Its totient is φ = 8029440.

The previous prime is 22116769. The next prime is 22116797. The reversal of 22116770 is 7761122.

It can be written as a sum of positive squares in 8 ways, for example, as 1713481 + 20403289 = 1309^2 + 4517^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6536 + ... + 9324.

Almost surely, 2^22116770 is an apocalyptic number.

22116770 is a deficient number, since it is larger than the sum of its proper divisors (21474190).

22116770 is a wasteful number, since it uses less digits than its factorization.

22116770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 22116770 is about 4702.8470100568. The cubic root of 22116770 is about 280.6988072290.

Adding to 22116770 its reverse (7761122), we get a palindrome (29877892).

The spelling of 22116770 in words is "twenty-two million, one hundred sixteen thousand, seven hundred seventy".