722721012323601 has 4 divisors (see below), whose sum is σ = 963628016431472. Its totient is φ = 481814008215732.

The previous prime is 722721012323533. The next prime is 722721012323603. The reversal of 722721012323601 is 106323210127227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 722721012323601 - 2²⁵ = 722720978769169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722721012323601.

It is not an unprimeable number, because it can be changed into a prime (722721012323603) 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, 120453502053931 + ... + 120453502053936.

It is an arithmetic number, because the mean of its divisors is an integer number (240907004107868).

Almost surely, 2^{722721012323601} is an apocalyptic number.

It is an amenable number.

722721012323601 is a deficient number, since it is larger than the sum of its proper divisors (240907004107871).

722721012323601 is a wasteful number, since it uses less digits than its factorization.

722721012323601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240907004107870.

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 722721012323601 in words is "seven hundred twenty-two trillion, seven hundred twenty-one billion, twelve million, three hundred twenty-three thousand, six hundred one".