22115020 has 24 divisors (see below), whose sum is σ = 46743984. Its totient is φ = 8788416.

The previous prime is 22114999. The next prime is 22115033. The reversal of 22115020 is 2051122.

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, 382 + ... + 6661.

It is an arithmetic number, because the mean of its divisors is an integer number (1947666).

Almost surely, 2^22115020 is an apocalyptic number.

22115020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22115020 is an abundant number, since it is smaller than the sum of its proper divisors (24628964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22115020 is a wasteful number, since it uses less digits than its factorization.

22115020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7209 (or 7207 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 22115020 is about 4702.6609488671. The cubic root of 22115020 is about 280.6914035579.

Adding to 22115020 its reverse (2051122), we get a palindrome (24166142).

The spelling of 22115020 in words is "twenty-two million, one hundred fifteen thousand, twenty".