722218201 has 2 divisors, whose sum is σ = 722218202. Its totient is φ = 722218200.

The previous prime is 722218183. The next prime is 722218213. The reversal of 722218201 is 102812227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660438601 + 61779600 = 25699^2 + 7860^2 .

It is a cyclic number.

It is not a de Polignac number, because 722218201 - 2¹⁷ = 722087129 is a prime.

It is not a weakly prime, because it can be changed into another prime (722218241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361109100 + 361109101.

It is an arithmetic number, because the mean of its divisors is an integer number (361109101).

Almost surely, 2^722218201 is an apocalyptic number.

It is an amenable number.

722218201 is a deficient number, since it is larger than the sum of its proper divisors (1).

722218201 is an equidigital number, since it uses as much as digits as its factorization.

722218201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 722218201 is about 26874.1176785397. The cubic root of 722218201 is about 897.2004368504.

The spelling of 722218201 in words is "seven hundred twenty-two million, two hundred eighteen thousand, two hundred one".