2112201100973 has 2 divisors, whose sum is σ = 2112201100974. Its totient is φ = 2112201100972.

The previous prime is 2112201100957. The next prime is 2112201101069. The reversal of 2112201100973 is 3790011022112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1109202856969 + 1002998244004 = 1053187^2 + 1001498^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112201100973 - 2⁴ = 2112201100957 is a prime.

It is a super-2 number, since 2×2112201100973² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112201100913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056100550486 + 1056100550487.

It is an arithmetic number, because the mean of its divisors is an integer number (1056100550487).

Almost surely, 2^{2112201100973} is an apocalyptic number.

It is an amenable number.

2112201100973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112201100973 is an equidigital number, since it uses as much as digits as its factorization.

2112201100973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 2112201100973 in words is "two trillion, one hundred twelve billion, two hundred one million, one hundred thousand, nine hundred seventy-three".