2112132203121 has 4 divisors (see below), whose sum is σ = 2816176270832. Its totient is φ = 1408088135412.

The previous prime is 2112132203117. The next prime is 2112132203171. The reversal of 2112132203121 is 1213022312112.

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 not a de Polignac number, because 2112132203121 - 2² = 2112132203117 is a prime.

It is a super-2 number, since 2×2112132203121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112132203171) 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, 352022033851 + ... + 352022033856.

It is an arithmetic number, because the mean of its divisors is an integer number (704044067708).

Almost surely, 2^{2112132203121} is an apocalyptic number.

It is an amenable number.

2112132203121 is a deficient number, since it is larger than the sum of its proper divisors (704044067711).

2112132203121 is an equidigital number, since it uses as much as digits as its factorization.

2112132203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704044067710.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2112132203121 its reverse (1213022312112), we get a palindrome (3325154515233).

The spelling of 2112132203121 in words is "two trillion, one hundred twelve billion, one hundred thirty-two million, two hundred three thousand, one hundred twenty-one".