2101120219993 has 2 divisors, whose sum is σ = 2101120219994. Its totient is φ = 2101120219992.

The previous prime is 2101120219987. The next prime is 2101120220009. The reversal of 2101120219993 is 3999120211012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1937753089024 + 163367130969 = 1392032^2 + 404187^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101120219993 - 2⁹ = 2101120219481 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101120219963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050560109996 + 1050560109997.

It is an arithmetic number, because the mean of its divisors is an integer number (1050560109997).

Almost surely, 2^{2101120219993} is an apocalyptic number.

It is an amenable number.

2101120219993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101120219993 is an equidigital number, since it uses as much as digits as its factorization.

2101120219993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 2101120219993 in words is "two trillion, one hundred one billion, one hundred twenty million, two hundred nineteen thousand, nine hundred ninety-three".