112012021091 has 2 divisors, whose sum is σ = 112012021092. Its totient is φ = 112012021090.

The previous prime is 112012021087. The next prime is 112012021097. The reversal of 112012021091 is 190120210211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112012021091 - 2² = 112012021087 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (112012021097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006010545 + 56006010546.

It is an arithmetic number, because the mean of its divisors is an integer number (56006010546).

Almost surely, 2^112012021091 is an apocalyptic number.

112012021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

112012021091 is an equidigital number, since it uses as much as digits as its factorization.

112012021091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 112012021091 in words is "one hundred twelve billion, twelve million, twenty-one thousand, ninety-one".