2312104042221 has 8 divisors (see below), whose sum is σ = 3154498538400. Its totient is φ = 1505556120432.

The previous prime is 2312104042219. The next prime is 2312104042321. The reversal of 2312104042221 is 1222404012132.

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

It is not a de Polignac number, because 2312104042221 - 2¹ = 2312104042219 is a prime.

It is a super-2 number, since 2×2312104042221² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2312104042191 and 2312104042200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312104042321) 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, 8961643446 + ... + 8961643703.

It is an arithmetic number, because the mean of its divisors is an integer number (394312317300).

Almost surely, 2^{2312104042221} is an apocalyptic number.

It is an amenable number.

2312104042221 is a deficient number, since it is larger than the sum of its proper divisors (842394496179).

2312104042221 is a wasteful number, since it uses less digits than its factorization.

2312104042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17923287195.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2312104042221 its reverse (1222404012132), we get a palindrome (3534508054353).

The spelling of 2312104042221 in words is "two trillion, three hundred twelve billion, one hundred four million, forty-two thousand, two hundred twenty-one".