2312112222001 has 4 divisors (see below), whose sum is σ = 2312267547712. Its totient is φ = 2311956896292.

The previous prime is 2312112221999. The next prime is 2312112222011. The reversal of 2312112222001 is 1002222112132.

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 2312112222001 - 2¹ = 2312112221999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2312112222001.

It is not an unprimeable number, because it can be changed into a prime (2312112222011) 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, 77640525 + ... + 77670298.

It is an arithmetic number, because the mean of its divisors is an integer number (578066886928).

Almost surely, 2^{2312112222001} is an apocalyptic number.

It is an amenable number.

2312112222001 is a deficient number, since it is larger than the sum of its proper divisors (155325711).

2312112222001 is a wasteful number, since it uses less digits than its factorization.

2312112222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155325710.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2312112222001 its reverse (1002222112132), we get a palindrome (3314334334133).

The spelling of 2312112222001 in words is "two trillion, three hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, one".