722212557641 has 2 divisors, whose sum is σ = 722212557642. Its totient is φ = 722212557640.

The previous prime is 722212557637. The next prime is 722212557691. The reversal of 722212557641 is 146755212227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698628505600 + 23584052041 = 835840^2 + 153571^2 .

It is a cyclic number.

It is not a de Polignac number, because 722212557641 - 2² = 722212557637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722212557592 and 722212557601.

It is not a weakly prime, because it can be changed into another prime (722212557601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361106278820 + 361106278821.

It is an arithmetic number, because the mean of its divisors is an integer number (361106278821).

Almost surely, 2^722212557641 is an apocalyptic number.

It is an amenable number.

722212557641 is a deficient number, since it is larger than the sum of its proper divisors (1).

722212557641 is an equidigital number, since it uses as much as digits as its factorization.

722212557641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 44.

Adding to 722212557641 its reverse (146755212227), we get a palindrome (868967769868).

The spelling of 722212557641 in words is "seven hundred twenty-two billion, two hundred twelve million, five hundred fifty-seven thousand, six hundred forty-one".