2130184912021 has 8 divisors (see below), whose sum is σ = 2131077409560. Its totient is φ = 2129292592128.

The previous prime is 2130184911997. The next prime is 2130184912027. The reversal of 2130184912021 is 1202194810312.

It can be written as a sum of positive squares in 4 ways, for example, as 585730008900 + 1544454903121 = 765330^2 + 1242761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2130184912021 - 2¹⁵ = 2130184879253 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 (2130184912027) 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, 27380545 + ... + 27458233.

It is an arithmetic number, because the mean of its divisors is an integer number (266384676195).

Almost surely, 2^{2130184912021} is an apocalyptic number.

It is an amenable number.

2130184912021 is a deficient number, since it is larger than the sum of its proper divisors (892497539).

2130184912021 is an equidigital number, since it uses as much as digits as its factorization.

2130184912021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88823.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 2130184912021 in words is "two trillion, one hundred thirty billion, one hundred eighty-four million, nine hundred twelve thousand, twenty-one".