2101090199021 has 8 divisors (see below), whose sum is σ = 2294931657600. Its totient is φ = 1907720950240.

The previous prime is 2101090198973. The next prime is 2101090199071. The reversal of 2101090199021 is 1209910901012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101090199021 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 (2101090199071) 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 7 ways as a sum of consecutive naturals, for example, 118043141 + ... + 118060938.

It is an arithmetic number, because the mean of its divisors is an integer number (286866457200).

Almost surely, 2^{2101090199021} is an apocalyptic number.

It is an amenable number.

2101090199021 is a deficient number, since it is larger than the sum of its proper divisors (193841458579).

2101090199021 is a wasteful number, since it uses less digits than its factorization.

2101090199021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236104899.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 2101090199021 in words is "two trillion, one hundred one billion, ninety million, one hundred ninety-nine thousand, twenty-one".