112121133 has 8 divisors (see below), whose sum is σ = 150077568. Its totient is φ = 74456064.

The previous prime is 112121117. The next prime is 112121143. The reversal of 112121133 is 331121211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112121133 - 2⁴ = 112121117 is a prime.

It is a super-2 number, since 2×112121133² = 25142296930407378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71941 + ... + 73482.

It is an arithmetic number, because the mean of its divisors is an integer number (18759696).

Almost surely, 2^112121133 is an apocalyptic number.

It is an amenable number.

112121133 is a deficient number, since it is larger than the sum of its proper divisors (37956435).

112121133 is a wasteful number, since it uses less digits than its factorization.

112121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145683.

The product of its digits is 36, while the sum is 15.

The square root of 112121133 is about 10588.7266939892. The cubic root of 112121133 is about 482.2021686532.

Adding to 112121133 its reverse (331121211), we get a palindrome (443242344).

It can be divided in two parts, 1121211 and 33, that multiplied together give a palindrome (36999963).

The spelling of 112121133 in words is "one hundred twelve million, one hundred twenty-one thousand, one hundred thirty-three".