2912734221 has 4 divisors (see below), whose sum is σ = 3883645632. Its totient is φ = 1941822812.

The previous prime is 2912734207. The next prime is 2912734261. The reversal of 2912734221 is 1224372192.

2912734221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2912734221 - 2⁷ = 2912734093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2912734261) 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, 485455701 + ... + 485455706.

It is an arithmetic number, because the mean of its divisors is an integer number (970911408).

Almost surely, 2^2912734221 is an apocalyptic number.

It is an amenable number.

2912734221 is a deficient number, since it is larger than the sum of its proper divisors (970911411).

2912734221 is an equidigital number, since it uses as much as digits as its factorization.

2912734221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970911410.

The product of its digits is 12096, while the sum is 33.

The square root of 2912734221 is about 53969.7528343423. The cubic root of 2912734221 is about 1428.1274038147.

The spelling of 2912734221 in words is "two billion, nine hundred twelve million, seven hundred thirty-four thousand, two hundred twenty-one".