1100200221997 has 2 divisors, whose sum is σ = 1100200221998. Its totient is φ = 1100200221996.

The previous prime is 1100200221937. The next prime is 1100200222013. The reversal of 1100200221997 is 7991220020011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 907039092996 + 193161129001 = 952386^2 + 439501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100200221997 - 2¹⁵ = 1100200189229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100200221907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550100110998 + 550100110999.

It is an arithmetic number, because the mean of its divisors is an integer number (550100110999).

Almost surely, 2^{1100200221997} is an apocalyptic number.

It is an amenable number.

1100200221997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100200221997 is an equidigital number, since it uses as much as digits as its factorization.

1100200221997 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 1100200221997 in words is "one trillion, one hundred billion, two hundred million, two hundred twenty-one thousand, nine hundred ninety-seven".