112001121 has 12 divisors (see below), whose sum is σ = 162548880. Its totient is φ = 74312280.

The previous prime is 112001107. The next prime is 112001129. The reversal of 112001121 is 121100211.

It is a happy number.

It is not a de Polignac number, because 112001121 - 2²³ = 103612513 is a prime.

It is a super-2 number, since 2×112001121² = 25088502210513282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (112001129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27591 + ... + 31388.

It is an arithmetic number, because the mean of its divisors is an integer number (13545740).

Almost surely, 2^112001121 is an apocalyptic number.

It is an amenable number.

112001121 is a deficient number, since it is larger than the sum of its proper divisors (50547759).

112001121 is a wasteful number, since it uses less digits than its factorization.

112001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59196 (or 59193 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 112001121 is about 10583.0582063976. The cubic root of 112001121 is about 482.0300610258.

Adding to 112001121 its reverse (121100211), we get a palindrome (233101332).

It can be divided in two parts, 11200 and 1121, that added together give a palindrome (12321).

The spelling of 112001121 in words is "one hundred twelve million, one thousand, one hundred twenty-one".