112011221 has 16 divisors (see below), whose sum is σ = 131580288. Its totient is φ = 93350400.

The previous prime is 112011191. The next prime is 112011227. The reversal of 112011221 is 122110211.

It is a cyclic number.

It is not a de Polignac number, because 112011221 - 2²⁶ = 44902357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112011227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126701 + ... + 127581.

It is an arithmetic number, because the mean of its divisors is an integer number (8223768).

Almost surely, 2^112011221 is an apocalyptic number.

It is an amenable number.

112011221 is a deficient number, since it is larger than the sum of its proper divisors (19569067).

112011221 is an equidigital number, since it uses as much as digits as its factorization.

112011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 112011221 is about 10583.5353733996. The cubic root of 112011221 is about 482.0445500394.

Adding to 112011221 its reverse (122110211), we get a palindrome (234121432).

The spelling of 112011221 in words is "one hundred twelve million, eleven thousand, two hundred twenty-one".