112221251 has 4 divisors (see below), whose sum is σ = 113801904. Its totient is φ = 110640600.

The previous prime is 112221227. The next prime is 112221283. The reversal of 112221251 is 152122211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112221251 - 2¹⁴ = 112204867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112221211) 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, 790220 + ... + 790361.

It is an arithmetic number, because the mean of its divisors is an integer number (28450476).

Almost surely, 2^112221251 is an apocalyptic number.

112221251 is a deficient number, since it is larger than the sum of its proper divisors (1580653).

112221251 is an equidigital number, since it uses as much as digits as its factorization.

112221251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580652.

The product of its digits is 80, while the sum is 17.

The square root of 112221251 is about 10593.4532141318. The cubic root of 112221251 is about 482.3456526185.

Adding to 112221251 its reverse (152122211), we get a palindrome (264343462).

The spelling of 112221251 in words is "one hundred twelve million, two hundred twenty-one thousand, two hundred fifty-one".