2101009293821 has 8 divisors (see below), whose sum is σ = 2103934428288. Its totient is φ = 2098084500000.

The previous prime is 2101009293811. The next prime is 2101009293827. The reversal of 2101009293821 is 1283929001012.

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-2101009293821 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 (2101009293827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13833746 + ... + 13984796.

It is an arithmetic number, because the mean of its divisors is an integer number (262991803536).

Almost surely, 2^{2101009293821} is an apocalyptic number.

It is an amenable number.

2101009293821 is a deficient number, since it is larger than the sum of its proper divisors (2925134467).

2101009293821 is a wasteful number, since it uses less digits than its factorization.

2101009293821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170323.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 2101009293821 in words is "two trillion, one hundred one billion, nine million, two hundred ninety-three thousand, eight hundred twenty-one".