2101220120199 has 16 divisors (see below), whose sum is σ = 2840148330752. Its totient is φ = 1381554595008.

The previous prime is 2101220120189. The next prime is 2101220120201. The reversal of 2101220120199 is 9910210221012.

It is not a de Polignac number, because 2101220120199 - 2¹² = 2101220116103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101220120189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4311444 + ... + 4773990.

It is an arithmetic number, because the mean of its divisors is an integer number (177509270672).

Almost surely, 2^{2101220120199} is an apocalyptic number.

2101220120199 is a deficient number, since it is larger than the sum of its proper divisors (738928210553).

2101220120199 is a wasteful number, since it uses less digits than its factorization.

2101220120199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483366.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 2101220120199 in words is "two trillion, one hundred one billion, two hundred twenty million, one hundred twenty thousand, one hundred ninety-nine".