1110221121197 has 2 divisors, whose sum is σ = 1110221121198. Its totient is φ = 1110221121196.

The previous prime is 1110221121179. The next prime is 1110221121223. The reversal of 1110221121197 is 7911211220111.

Together with previous prime (1110221121179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 724395040996 + 385826080201 = 851114^2 + 621149^2 .

It is an emirp because it is prime and its reverse (7911211220111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110221121197 - 2²⁶ = 1110154012333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110221123197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555110560598 + 555110560599.

It is an arithmetic number, because the mean of its divisors is an integer number (555110560599).

Almost surely, 2^{1110221121197} is an apocalyptic number.

It is an amenable number.

1110221121197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110221121197 is an equidigital number, since it uses as much as digits as its factorization.

1110221121197 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 29.

The spelling of 1110221121197 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred ninety-seven".