1122020001997 has 2 divisors, whose sum is σ = 1122020001998. Its totient is φ = 1122020001996.

The previous prime is 1122020001959. The next prime is 1122020002039. The reversal of 1122020001997 is 7991000202211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 979573390756 + 142446611241 = 989734^2 + 377421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122020001997 - 2²³ = 1122011613389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122020001917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561010000998 + 561010000999.

It is an arithmetic number, because the mean of its divisors is an integer number (561010000999).

Almost surely, 2^{1122020001997} is an apocalyptic number.

It is an amenable number.

1122020001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122020001997 is an equidigital number, since it uses as much as digits as its factorization.

1122020001997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 1122020001997 in words is "one trillion, one hundred twenty-two billion, twenty million, one thousand, nine hundred ninety-seven".