2112550314421 has 4 divisors (see below), whose sum is σ = 2112786811692. Its totient is φ = 2112313817152.

The previous prime is 2112550314403. The next prime is 2112550314487. The reversal of 2112550314421 is 1244130552112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 900811690321 + 1211738624100 = 949111^2 + 1100790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112550314421 - 2⁵ = 2112550314389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112550314221) 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, 118235236 + ... + 118253101.

It is an arithmetic number, because the mean of its divisors is an integer number (528196702923).

Almost surely, 2^{2112550314421} is an apocalyptic number.

It is an amenable number.

2112550314421 is a deficient number, since it is larger than the sum of its proper divisors (236497271).

2112550314421 is an equidigital number, since it uses as much as digits as its factorization.

2112550314421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236497270.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 2112550314421 its reverse (1244130552112), we get a palindrome (3356680866533).

The spelling of 2112550314421 in words is "two trillion, one hundred twelve billion, five hundred fifty million, three hundred fourteen thousand, four hundred twenty-one".