112211001997 has 2 divisors, whose sum is σ = 112211001998. Its totient is φ = 112211001996.

The previous prime is 112211001923. The next prime is 112211002027. The reversal of 112211001997 is 799100112211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84475097316 + 27735904681 = 290646^2 + 166541^2 .

It is a cyclic number.

It is not a de Polignac number, because 112211001997 - 2²⁷ = 112076784269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112211001197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56105500998 + 56105500999.

It is an arithmetic number, because the mean of its divisors is an integer number (56105500999).

Almost surely, 2^112211001997 is an apocalyptic number.

It is an amenable number.

112211001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

112211001997 is an equidigital number, since it uses as much as digits as its factorization.

112211001997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 112211001997 in words is "one hundred twelve billion, two hundred eleven million, one thousand, nine hundred ninety-seven".