2207043054721 has 4 divisors (see below), whose sum is σ = 2207378631172. Its totient is φ = 2206707478272.

The previous prime is 2207043054707. The next prime is 2207043054773. The reversal of 2207043054721 is 1274503407022.

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 1566940650625 + 640102404096 = 1251775^2 + 800064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2207043054721 - 2²³ = 2207034666113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2207043054121) 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, 167778360 + ... + 167791513.

It is an arithmetic number, because the mean of its divisors is an integer number (551844657793).

Almost surely, 2^{2207043054721} is an apocalyptic number.

It is an amenable number.

2207043054721 is a deficient number, since it is larger than the sum of its proper divisors (335576451).

2207043054721 is an equidigital number, since it uses as much as digits as its factorization.

2207043054721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335576450.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 2207043054721 in words is "two trillion, two hundred seven billion, forty-three million, fifty-four thousand, seven hundred twenty-one".