722226041257 has 4 divisors (see below), whose sum is σ = 825401190016. Its totient is φ = 619050892500.

The previous prime is 722226041203. The next prime is 722226041333. The reversal of 722226041257 is 752140622227.

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, and also an emirpimes, since its reverse is a distinct semiprime: 752140622227 = 31 ⋅24262600717.

It is a cyclic number.

It is not a de Polignac number, because 722226041257 - 2¹⁵ = 722226008489 is a prime.

It is a super-2 number, since 2×722226041257² (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 (722226041357) 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, 51587574369 + ... + 51587574382.

It is an arithmetic number, because the mean of its divisors is an integer number (206350297504).

Almost surely, 2^722226041257 is an apocalyptic number.

It is an amenable number.

722226041257 is a deficient number, since it is larger than the sum of its proper divisors (103175148759).

722226041257 is a wasteful number, since it uses less digits than its factorization.

722226041257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103175148758.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 722226041257 in words is "seven hundred twenty-two billion, two hundred twenty-six million, forty-one thousand, two hundred fifty-seven".