2131330100221 has 8 divisors (see below), whose sum is σ = 2495215727424. Its totient is φ = 1782296947680.

The previous prime is 2131330100117. The next prime is 2131330100261. The reversal of 2131330100221 is 1220010331312.

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 2131330100221 - 2⁹ = 2131330099709 is a prime.

It is a super-2 number, since 2×2131330100221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131330100261) 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, 3713118355 + ... + 3713118928.

It is an arithmetic number, because the mean of its divisors is an integer number (311901965928).

Almost surely, 2^{2131330100221} is an apocalyptic number.

It is an amenable number.

2131330100221 is a deficient number, since it is larger than the sum of its proper divisors (363885627203).

2131330100221 is an equidigital number, since it uses as much as digits as its factorization.

2131330100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7426237331.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2131330100221 its reverse (1220010331312), we get a palindrome (3351340431533).

The spelling of 2131330100221 in words is "two trillion, one hundred thirty-one billion, three hundred thirty million, one hundred thousand, two hundred twenty-one".