121112229 has 16 divisors (see below), whose sum is σ = 185884160. Its totient is φ = 68707440.

The previous prime is 121112203. The next prime is 121112263. The reversal of 121112229 is 922211121.

It is not a de Polignac number, because 121112229 - 2⁵ = 121112197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112129) 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, 17827 + ... + 23664.

It is an arithmetic number, because the mean of its divisors is an integer number (11617760).

Almost surely, 2^121112229 is an apocalyptic number.

It is an amenable number.

121112229 is a deficient number, since it is larger than the sum of its proper divisors (64771931).

121112229 is a wasteful number, since it uses less digits than its factorization.

121112229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41640.

The product of its digits is 144, while the sum is 21.

The square root of 121112229 is about 11005.1001358461. The cubic root of 121112229 is about 494.7616156519.

The spelling of 121112229 in words is "one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-nine".