112221515 has 12 divisors (see below), whose sum is σ = 156652416. Its totient is φ = 76951728.

The previous prime is 112221509. The next prime is 112221541. The reversal of 112221515 is 515122211.

It is not a de Polignac number, because 112221515 - 2¹² = 112217419 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228779 + ... + 229268.

It is an arithmetic number, because the mean of its divisors is an integer number (13054368).

Almost surely, 2^112221515 is an apocalyptic number.

112221515 is a deficient number, since it is larger than the sum of its proper divisors (44430901).

112221515 is an equidigital number, since it uses as much as digits as its factorization.

112221515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458066 (or 458059 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 112221515 is about 10593.4656746506. The cubic root of 112221515 is about 482.3460308568.

Adding to 112221515 its reverse (515122211), we get a palindrome (627343726).

The spelling of 112221515 in words is "one hundred twelve million, two hundred twenty-one thousand, five hundred fifteen".