22113506 has 8 divisors (see below), whose sum is σ = 33191424. Its totient is φ = 11049700.

The previous prime is 22113503. The next prime is 22113521. The reversal of 22113506 is 60531122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22113506² = 978014295224072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22113503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (4148928).

Almost surely, 2^22113506 is an apocalyptic number.

It is a pronic number, being equal to 4702×4703.

22113506 is a deficient number, since it is larger than the sum of its proper divisors (11077918).

22113506 is a wasteful number, since it uses less digits than its factorization.

22113506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22113506 is about 4702.4999734184. The cubic root of 22113506 is about 280.6849980097.

Adding to 22113506 its reverse (60531122), we get a palindrome (82644628).

The spelling of 22113506 in words is "twenty-two million, one hundred thirteen thousand, five hundred six".