3047222721761 has 2 divisors, whose sum is σ = 3047222721762. Its totient is φ = 3047222721760.

The previous prime is 3047222721737. The next prime is 3047222721779. The reversal of 3047222721761 is 1671272227403.

It is a happy number.

3047222721761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2674268231761 + 372954490000 = 1635319^2 + 610700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3047222721761 is a prime.

It is a super-2 number, since 2×3047222721761² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3047222121761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1523611360880 + 1523611360881.

It is an arithmetic number, because the mean of its divisors is an integer number (1523611360881).

Almost surely, 2^{3047222721761} is an apocalyptic number.

It is an amenable number.

3047222721761 is a deficient number, since it is larger than the sum of its proper divisors (1).

3047222721761 is an equidigital number, since it uses as much as digits as its factorization.

3047222721761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 3047222721761 in words is "three trillion, forty-seven billion, two hundred twenty-two million, seven hundred twenty-one thousand, seven hundred sixty-one".