722121120197 has 2 divisors, whose sum is σ = 722121120198. Its totient is φ = 722121120196.

The previous prime is 722121120181. The next prime is 722121120223. The reversal of 722121120197 is 791021121227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720926657476 + 1194462721 = 849074^2 + 34561^2 .

It is a cyclic number.

It is not a de Polignac number, because 722121120197 - 2⁴ = 722121120181 is a prime.

It is a super-4 number, since 4×722121120197⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722121120137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361060560098 + 361060560099.

It is an arithmetic number, because the mean of its divisors is an integer number (361060560099).

Almost surely, 2^722121120197 is an apocalyptic number.

It is an amenable number.

722121120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

722121120197 is an equidigital number, since it uses as much as digits as its factorization.

722121120197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 35.

The spelling of 722121120197 in words is "seven hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, one hundred ninety-seven".