1002220097 has 2 divisors, whose sum is σ = 1002220098. Its totient is φ = 1002220096.

The previous prime is 1002220081. The next prime is 1002220117. The reversal of 1002220097 is 7900222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520022416 + 482197681 = 22804^2 + 21959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002220097 - 2⁴ = 1002220081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002225097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501110048 + 501110049.

It is an arithmetic number, because the mean of its divisors is an integer number (501110049).

Almost surely, 2^1002220097 is an apocalyptic number.

It is an amenable number.

1002220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002220097 is an equidigital number, since it uses as much as digits as its factorization.

1002220097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1002220097 is about 31657.8599560994. The cubic root of 1002220097 is about 1000.7394853599.

Adding to 1002220097 its reverse (7900222001), we get a palindrome (8902442098).

The spelling of 1002220097 in words is "one billion, two million, two hundred twenty thousand, ninety-seven".