2221522301 has 2 divisors, whose sum is σ = 2221522302. Its totient is φ = 2221522300.

The previous prime is 2221522297. The next prime is 2221522319. The reversal of 2221522301 is 1032251222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2088581401 + 132940900 = 45701^2 + 11530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221522301 - 2² = 2221522297 is a prime.

It is a super-2 number, since 2×2221522301² = 9870322667680669202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221522361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110761150 + 1110761151.

It is an arithmetic number, because the mean of its divisors is an integer number (1110761151).

Almost surely, 2^2221522301 is an apocalyptic number.

It is an amenable number.

2221522301 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221522301 is an equidigital number, since it uses as much as digits as its factorization.

2221522301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2221522301 is about 47133.0277088158. The cubic root of 2221522301 is about 1304.8188610560.

Adding to 2221522301 its reverse (1032251222), we get a palindrome (3253773523).

The spelling of 2221522301 in words is "two billion, two hundred twenty-one million, five hundred twenty-two thousand, three hundred one".