722202101 has 2 divisors, whose sum is σ = 722202102. Its totient is φ = 722202100.

The previous prime is 722202077. The next prime is 722202163. The reversal of 722202101 is 101202227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 699867025 + 22335076 = 26455^2 + 4726^2 .

It is a cyclic number.

It is not a de Polignac number, because 722202101 - 2¹⁸ = 721939957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722202101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722202181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361101050 + 361101051.

It is an arithmetic number, because the mean of its divisors is an integer number (361101051).

Almost surely, 2^722202101 is an apocalyptic number.

It is an amenable number.

722202101 is a deficient number, since it is larger than the sum of its proper divisors (1).

722202101 is an equidigital number, since it uses as much as digits as its factorization.

722202101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 722202101 is about 26873.8181321523. The cubic root of 722202101 is about 897.1937698743.

Adding to 722202101 its reverse (101202227), we get a palindrome (823404328).

The spelling of 722202101 in words is "seven hundred twenty-two million, two hundred two thousand, one hundred one".