722962221 has 8 divisors (see below), whose sum is σ = 964616160. Its totient is φ = 481641552.

The previous prime is 722962211. The next prime is 722962231. The reversal of 722962221 is 122269227.

It is an interprime number because it is at equal distance from previous prime (722962211) and next prime (722962231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 722962221 - 2⁶ = 722962157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722962211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78210 + ... + 86963.

It is an arithmetic number, because the mean of its divisors is an integer number (120577020).

Almost surely, 2^722962221 is an apocalyptic number.

It is an amenable number.

722962221 is a deficient number, since it is larger than the sum of its proper divisors (241653939).

722962221 is a wasteful number, since it uses less digits than its factorization.

722962221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166635.

The product of its digits is 12096, while the sum is 33.

The square root of 722962221 is about 26887.9568022563. The cubic root of 722962221 is about 897.5084259366.

The spelling of 722962221 in words is "seven hundred twenty-two million, nine hundred sixty-two thousand, two hundred twenty-one".