1012022197 has 2 divisors, whose sum is σ = 1012022198. Its totient is φ = 1012022196.

The previous prime is 1012022177. The next prime is 1012022281. The reversal of 1012022197 is 7912202101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 937216996 + 74805201 = 30614^2 + 8649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012022197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012022177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506011098 + 506011099.

It is an arithmetic number, because the mean of its divisors is an integer number (506011099).

Almost surely, 2^1012022197 is an apocalyptic number.

It is an amenable number.

1012022197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012022197 is an equidigital number, since it uses as much as digits as its factorization.

1012022197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1012022197 is about 31812.2963176191. The cubic root of 1012022197 is about 1003.9914461608.

Adding to 1012022197 its reverse (7912202101), we get a palindrome (8924224298).

The spelling of 1012022197 in words is "one billion, twelve million, twenty-two thousand, one hundred ninety-seven".