722421671141 has 2 divisors, whose sum is σ = 722421671142. Its totient is φ = 722421671140.

The previous prime is 722421671117. The next prime is 722421671173. The reversal of 722421671141 is 141176124227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616766769025 + 105654902116 = 785345^2 + 325046^2 .

It is an emirp because it is prime and its reverse (141176124227) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722421671141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722421671095 and 722421671104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722421670141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361210835570 + 361210835571.

It is an arithmetic number, because the mean of its divisors is an integer number (361210835571).

Almost surely, 2^722421671141 is an apocalyptic number.

It is an amenable number.

722421671141 is a deficient number, since it is larger than the sum of its proper divisors (1).

722421671141 is an equidigital number, since it uses as much as digits as its factorization.

722421671141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

Adding to 722421671141 its reverse (141176124227), we get a palindrome (863597795368).

The spelling of 722421671141 in words is "seven hundred twenty-two billion, four hundred twenty-one million, six hundred seventy-one thousand, one hundred forty-one".