111229012 has 24 divisors (see below), whose sum is σ = 203930496. Its totient is φ = 52982688.

The previous prime is 111229009. The next prime is 111229031. The reversal of 111229012 is 210922111.

It is a happy number.

It is a super-2 number, since 2×111229012² = 24743786220992288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21898 + ... + 26494.

It is an arithmetic number, because the mean of its divisors is an integer number (8497104).

Almost surely, 2^111229012 is an apocalyptic number.

It is an amenable number.

111229012 is a deficient number, since it is larger than the sum of its proper divisors (92701484).

111229012 is a wasteful number, since it uses less digits than its factorization.

111229012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 111229012 is about 10546.5165813173. The cubic root of 111229012 is about 480.9198391664.

The spelling of 111229012 in words is "one hundred eleven million, two hundred twenty-nine thousand, twelve".