2084202418921 has 4 divisors (see below), whose sum is σ = 2381945621632. Its totient is φ = 1786459216212.

The previous prime is 2084202418889. The next prime is 2084202418927. The reversal of 2084202418921 is 1298142024802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2084202418921 - 2⁵ = 2084202418889 is a prime.

It is a super-2 number, since 2×2084202418921² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2084202418927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148871601345 + ... + 148871601358.

It is an arithmetic number, because the mean of its divisors is an integer number (595486405408).

Almost surely, 2^{2084202418921} is an apocalyptic number.

It is an amenable number.

2084202418921 is a deficient number, since it is larger than the sum of its proper divisors (297743202711).

2084202418921 is an equidigital number, since it uses as much as digits as its factorization.

2084202418921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297743202710.

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 2084202418921 in words is "two trillion, eighty-four billion, two hundred two million, four hundred eighteen thousand, nine hundred twenty-one".