2212100099977 has 2 divisors, whose sum is σ = 2212100099978. Its totient is φ = 2212100099976.

The previous prime is 2212100099959. The next prime is 2212100100013. The reversal of 2212100099977 is 7799900012122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1882743481161 + 329356618816 = 1372131^2 + 573896^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212100099977 - 2¹⁹ = 2212099575689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212100099977.

It is not a weakly prime, because it can be changed into another prime (2212100096977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106050049988 + 1106050049989.

It is an arithmetic number, because the mean of its divisors is an integer number (1106050049989).

Almost surely, 2^{2212100099977} is an apocalyptic number.

It is an amenable number.

2212100099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212100099977 is an equidigital number, since it uses as much as digits as its factorization.

2212100099977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 2212100099977 in words is "two trillion, two hundred twelve billion, one hundred million, ninety-nine thousand, nine hundred seventy-seven".