112101999 has 4 divisors (see below), whose sum is σ = 149469336. Its totient is φ = 74734664.

The previous prime is 112101991. The next prime is 112102009. The reversal of 112101999 is 999101211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112101999 - 2³ = 112101991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112101991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18683664 + ... + 18683669.

It is an arithmetic number, because the mean of its divisors is an integer number (37367334).

Almost surely, 2^112101999 is an apocalyptic number.

112101999 is a deficient number, since it is larger than the sum of its proper divisors (37367337).

112101999 is an equidigital number, since it uses as much as digits as its factorization.

112101999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37367336.

The product of its (nonzero) digits is 1458, while the sum is 33.

The square root of 112101999 is about 10587.8231473708. The cubic root of 112101999 is about 482.1747370682.

The spelling of 112101999 in words is "one hundred twelve million, one hundred one thousand, nine hundred ninety-nine".