2221401097 has 2 divisors, whose sum is σ = 2221401098. Its totient is φ = 2221401096.

The previous prime is 2221401041. The next prime is 2221401109. The reversal of 2221401097 is 7901041222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1445444361 + 775956736 = 38019^2 + 27856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221401097 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221431097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110700548 + 1110700549.

It is an arithmetic number, because the mean of its divisors is an integer number (1110700549).

Almost surely, 2^2221401097 is an apocalyptic number.

It is an amenable number.

2221401097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221401097 is an equidigital number, since it uses as much as digits as its factorization.

2221401097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2221401097 is about 47131.7419262221. The cubic root of 2221401097 is about 1304.7951307606.

The spelling of 2221401097 in words is "two billion, two hundred twenty-one million, four hundred one thousand, ninety-seven".