722120011001 has 4 divisors (see below), whose sum is σ = 722267718900. Its totient is φ = 721972303104.

The previous prime is 722120010971. The next prime is 722120011009. The reversal of 722120011001 is 100110021227.

722120011001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 242807490025 + 479312520976 = 492755^2 + 692324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722120011001 is a prime.

It is a super-2 number, since 2×722120011001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722120011009) 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, 73846616 + ... + 73856393.

It is an arithmetic number, because the mean of its divisors is an integer number (180566929725).

Almost surely, 2^722120011001 is an apocalyptic number.

It is an amenable number.

722120011001 is a deficient number, since it is larger than the sum of its proper divisors (147707899).

722120011001 is a wasteful number, since it uses less digits than its factorization.

722120011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147707898.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 722120011001 its reverse (100110021227), we get a palindrome (822230032228).

The spelling of 722120011001 in words is "seven hundred twenty-two billion, one hundred twenty million, eleven thousand, one".