2312210203121 has 48 divisors (see below), whose sum is σ = 2904595173648. Its totient is φ = 1824408230400.

The previous prime is 2312210203109. The next prime is 2312210203123. The reversal of 2312210203121 is 1213020122132.

It can be written as a sum of positive squares in 8 ways, for example, as 681062320225 + 1631147882896 = 825265^2 + 1277164^2 .

It is not a de Polignac number, because 2312210203121 - 2³⁰ = 2311136461297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2312210203093 and 2312210203102.

It is not an unprimeable number, because it can be changed into a prime (2312210203123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 414297551 + ... + 414303131.

It is an arithmetic number, because the mean of its divisors is an integer number (60512399451).

Almost surely, 2^{2312210203121} is an apocalyptic number.

It is an amenable number.

2312210203121 is a deficient number, since it is larger than the sum of its proper divisors (592384970527).

2312210203121 is a wasteful number, since it uses less digits than its factorization.

2312210203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282 (or 7275 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2312210203121 its reverse (1213020122132), we get a palindrome (3525230325253).

The spelling of 2312210203121 in words is "two trillion, three hundred twelve billion, two hundred ten million, two hundred three thousand, one hundred twenty-one".