1110021331121 has 2 divisors, whose sum is σ = 1110021331122. Its totient is φ = 1110021331120.

The previous prime is 1110021331079. The next prime is 1110021331141. The reversal of 1110021331121 is 1211331200111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578778600625 + 531242730496 = 760775^2 + 728864^2 .

It is an emirp because it is prime and its reverse (1211331200111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110021331121 - 2⁶ = 1110021331057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1110021331121.

It is not a weakly prime, because it can be changed into another prime (1110021331141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555010665560 + 555010665561.

It is an arithmetic number, because the mean of its divisors is an integer number (555010665561).

Almost surely, 2^{1110021331121} is an apocalyptic number.

It is an amenable number.

1110021331121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110021331121 is an equidigital number, since it uses as much as digits as its factorization.

1110021331121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1110021331121 its reverse (1211331200111), we get a palindrome (2321352531232).

The spelling of 1110021331121 in words is "one trillion, one hundred ten billion, twenty-one million, three hundred thirty-one thousand, one hundred twenty-one".