1122020220197 has 2 divisors, whose sum is σ = 1122020220198. Its totient is φ = 1122020220196.

The previous prime is 1122020220193. The next prime is 1122020220227. The reversal of 1122020220197 is 7910220202211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929361553156 + 192658667041 = 964034^2 + 438929^2 .

It is an emirp because it is prime and its reverse (7910220202211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122020220197 - 2² = 1122020220193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122020220193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561010110098 + 561010110099.

It is an arithmetic number, because the mean of its divisors is an integer number (561010110099).

Almost surely, 2^{1122020220197} is an apocalyptic number.

It is an amenable number.

1122020220197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122020220197 is an equidigital number, since it uses as much as digits as its factorization.

1122020220197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 1122020220197 in words is "one trillion, one hundred twenty-two billion, twenty million, two hundred twenty thousand, one hundred ninety-seven".