121011112 has 16 divisors (see below), whose sum is σ = 230283360. Its totient is φ = 59602224.

The previous prime is 121011109. The next prime is 121011181. The reversal of 121011112 is 211110121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112348 + ... + 113419.

It is an arithmetic number, because the mean of its divisors is an integer number (14392710).

Almost surely, 2^121011112 is an apocalyptic number.

It is an amenable number.

121011112 is a deficient number, since it is larger than the sum of its proper divisors (109272248).

121011112 is a wasteful number, since it uses less digits than its factorization.

121011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225840 (or 225836 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 121011112 is about 11000.5050793134. The cubic root of 121011112 is about 494.6238846117.

Adding to 121011112 its reverse (211110121), we get a palindrome (332121233).

Subtracting 121011112 from its reverse (211110121), we obtain a palindrome (90099009).

The spelling of 121011112 in words is "one hundred twenty-one million, eleven thousand, one hundred twelve".