222012113 has 4 divisors (see below), whose sum is σ = 222106608. Its totient is φ = 221917620.

The previous prime is 222012083. The next prime is 222012121. The reversal of 222012113 is 311210222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311210222 = 2 ⋅155605111.

It is a cyclic number.

It is not a de Polignac number, because 222012113 - 2¹⁰ = 222011089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222014113) 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, 43631 + ... + 48452.

It is an arithmetic number, because the mean of its divisors is an integer number (55526652).

Almost surely, 2^222012113 is an apocalyptic number.

It is an amenable number.

222012113 is a deficient number, since it is larger than the sum of its proper divisors (94495).

222012113 is an equidigital number, since it uses as much as digits as its factorization.

222012113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94494.

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

The square root of 222012113 is about 14900.0709058716. The cubic root of 222012113 is about 605.5159071847.

Adding to 222012113 its reverse (311210222), we get a palindrome (533222335).

The spelling of 222012113 in words is "two hundred twenty-two million, twelve thousand, one hundred thirteen".