1121003033221 has 2 divisors, whose sum is σ = 1121003033222. Its totient is φ = 1121003033220.

The previous prime is 1121003033209. The next prime is 1121003033237. The reversal of 1121003033221 is 1223303001211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 699004684225 + 421998348996 = 836065^2 + 649614^2 .

It is an emirp because it is prime and its reverse (1223303001211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121003033221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121003033251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560501516610 + 560501516611.

It is an arithmetic number, because the mean of its divisors is an integer number (560501516611).

Almost surely, 2^{1121003033221} is an apocalyptic number.

It is an amenable number.

1121003033221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121003033221 is an equidigital number, since it uses as much as digits as its factorization.

1121003033221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1121003033221 its reverse (1223303001211), we get a palindrome (2344306034432).

The spelling of 1121003033221 in words is "one trillion, one hundred twenty-one billion, three million, thirty-three thousand, two hundred twenty-one".