112212999 has 8 divisors (see below), whose sum is σ = 166241520. Its totient is φ = 74808648.

The previous prime is 112212979. The next prime is 112213019. The reversal of 112212999 is 999212211.

It is an interprime number because it is at equal distance from previous prime (112212979) and next prime (112213019).

It is not a de Polignac number, because 112212999 - 2¹⁵ = 112180231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212959) 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, 2077992 + ... + 2078045.

It is an arithmetic number, because the mean of its divisors is an integer number (20780190).

Almost surely, 2^112212999 is an apocalyptic number.

112212999 is a deficient number, since it is larger than the sum of its proper divisors (54028521).

112212999 is an equidigital number, since it uses as much as digits as its factorization.

112212999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156046 (or 4156040 counting only the distinct ones).

The product of its digits is 5832, while the sum is 36.

The square root of 112212999 is about 10593.0637211337. The cubic root of 112212999 is about 482.3338295046. Note that the first 3 decimals are identical.

The spelling of 112212999 in words is "one hundred twelve million, two hundred twelve thousand, nine hundred ninety-nine".