112212979 has 2 divisors, whose sum is σ = 112212980. Its totient is φ = 112212978.

The previous prime is 112212959. The next prime is 112213019. The reversal of 112212979 is 979212211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112212979 - 2⁷ = 112212851 is a prime.

It is not a weakly prime, because it can be changed into another prime (112212959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56106489 + 56106490.

It is an arithmetic number, because the mean of its divisors is an integer number (56106490).

Almost surely, 2^112212979 is an apocalyptic number.

112212979 is a deficient number, since it is larger than the sum of its proper divisors (1).

112212979 is an equidigital number, since it uses as much as digits as its factorization.

112212979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 34.

The square root of 112212979 is about 10593.0627771198. The cubic root of 112212979 is about 482.3338008487. Note that the first 3 decimals are identical.

The spelling of 112212979 in words is "one hundred twelve million, two hundred twelve thousand, nine hundred seventy-nine".