22115130 has 64 divisors (see below), whose sum is σ = 56878848. Its totient is φ = 5483520.

The previous prime is 22115129. The next prime is 22115143. The reversal of 22115130 is 3151122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52320 + ... + 52740.

It is an arithmetic number, because the mean of its divisors is an integer number (888732).

Almost surely, 2^22115130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22115130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28439424).

22115130 is an abundant number, since it is smaller than the sum of its proper divisors (34763718).

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

22115130 is a wasteful number, since it uses less digits than its factorization.

22115130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 22115130 is about 4702.6726443587. The cubic root of 22115130 is about 280.6918689430.

Adding to 22115130 its reverse (3151122), we get a palindrome (25266252).

It can be divided in two parts, 221 and 15130, that added together give a palindrome (15351).

The spelling of 22115130 in words is "twenty-two million, one hundred fifteen thousand, one hundred thirty".