1110221011021 has 2 divisors, whose sum is σ = 1110221011022. Its totient is φ = 1110221011020.

The previous prime is 1110221010971. The next prime is 1110221011057. The reversal of 1110221011021 is 1201101220111.

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., 1097780062500 + 12440948521 = 1047750^2 + 111539^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110221011021 - 2⁷ = 1110221010893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1110221010992 and 1110221011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110221071021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555110505510 + 555110505511.

It is an arithmetic number, because the mean of its divisors is an integer number (555110505511).

Almost surely, 2^{1110221011021} is an apocalyptic number.

It is an amenable number.

1110221011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110221011021 is an equidigital number, since it uses as much as digits as its factorization.

1110221011021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110221011021 its reverse (1201101220111), we get a palindrome (2311322231132).

The spelling of 1110221011021 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, eleven thousand, twenty-one".