321722242607 has 4 divisors (see below), whose sum is σ = 322945521360. Its totient is φ = 320498963856.

The previous prime is 321722242601. The next prime is 321722242613. The reversal of 321722242607 is 706242227123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706242227123 = 17 ⋅41543660419.

It is an interprime number because it is at equal distance from previous prime (321722242601) and next prime (321722242613).

It is a cyclic number.

It is not a de Polignac number, because 321722242607 - 2⁴ = 321722242591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321722242601) 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, 611638982 + ... + 611639507.

It is an arithmetic number, because the mean of its divisors is an integer number (80736380340).

Almost surely, 2^321722242607 is an apocalyptic number.

321722242607 is a deficient number, since it is larger than the sum of its proper divisors (1223278753).

321722242607 is a wasteful number, since it uses less digits than its factorization.

321722242607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223278752.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 321722242607 in words is "three hundred twenty-one billion, seven hundred twenty-two million, two hundred forty-two thousand, six hundred seven".