2100210121199 has 2 divisors, whose sum is σ = 2100210121200. Its totient is φ = 2100210121198.

The previous prime is 2100210121193. The next prime is 2100210121201. The reversal of 2100210121199 is 9911210120012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100210121199 is a prime.

Together with 2100210121201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100210121193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050105060599 + 1050105060600.

It is an arithmetic number, because the mean of its divisors is an integer number (1050105060600).

Almost surely, 2^{2100210121199} is an apocalyptic number.

2100210121199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100210121199 is an equidigital number, since it uses as much as digits as its factorization.

2100210121199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 2100210121199 in words is "two trillion, one hundred billion, two hundred ten million, one hundred twenty-one thousand, one hundred ninety-nine".