1022112197 has 2 divisors, whose sum is σ = 1022112198. Its totient is φ = 1022112196.

The previous prime is 1022112181. The next prime is 1022112209. The reversal of 1022112197 is 7912112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513203716 + 508908481 = 22654^2 + 22559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022112197 - 2⁴ = 1022112181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022112127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511056098 + 511056099.

It is an arithmetic number, because the mean of its divisors is an integer number (511056099).

Almost surely, 2^1022112197 is an apocalyptic number.

It is an amenable number.

1022112197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022112197 is an equidigital number, since it uses as much as digits as its factorization.

1022112197 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 26.

The square root of 1022112197 is about 31970.4894707604. The cubic root of 1022112197 is about 1007.3170623482.

Adding to 1022112197 its reverse (7912112201), we get a palindrome (8934224398).

The spelling of 1022112197 in words is "one billion, twenty-two million, one hundred twelve thousand, one hundred ninety-seven".