722260050721 has 4 divisors (see below), whose sum is σ = 787920055344. Its totient is φ = 656600046100.

The previous prime is 722260050697. The next prime is 722260050749. The reversal of 722260050721 is 127050062227.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 722260050721 - 2⁹ = 722260050209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722260050221) 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, 32830002295 + ... + 32830002316.

It is an arithmetic number, because the mean of its divisors is an integer number (196980013836).

Almost surely, 2^722260050721 is an apocalyptic number.

It is an amenable number.

722260050721 is a deficient number, since it is larger than the sum of its proper divisors (65660004623).

722260050721 is a wasteful number, since it uses less digits than its factorization.

722260050721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65660004622.

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 722260050721 in words is "seven hundred twenty-two billion, two hundred sixty million, fifty thousand, seven hundred twenty-one".