2120101099 has 2 divisors, whose sum is σ = 2120101100. Its totient is φ = 2120101098.

The previous prime is 2120101097. The next prime is 2120101133. The reversal of 2120101099 is 9901010212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120101099 - 2¹ = 2120101097 is a prime.

Together with 2120101097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2120101097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060050549 + 1060050550.

It is an arithmetic number, because the mean of its divisors is an integer number (1060050550).

Almost surely, 2^2120101099 is an apocalyptic number.

2120101099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120101099 is an equidigital number, since it uses as much as digits as its factorization.

2120101099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 2120101099 is about 46044.5555847811. Note that the first 4 decimals coincide. The cubic root of 2120101099 is about 1284.6520779816.

The spelling of 2120101099 in words is "two billion, one hundred twenty million, one hundred one thousand, ninety-nine".