1110102202021 has 2 divisors, whose sum is σ = 1110102202022. Its totient is φ = 1110102202020.

The previous prime is 1110102202019. The next prime is 1110102202073. The reversal of 1110102202021 is 1202022010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992942496225 + 117159705796 = 996465^2 + 342286^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110102202021 - 2¹ = 1110102202019 is a prime.

Together with 1110102202019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1110102201992 and 1110102202010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110102206021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555051101010 + 555051101011.

It is an arithmetic number, because the mean of its divisors is an integer number (555051101011).

Almost surely, 2^{1110102202021} is an apocalyptic number.

It is an amenable number.

1110102202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110102202021 is an equidigital number, since it uses as much as digits as its factorization.

1110102202021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1110102202021 its reverse (1202022010111), we get a palindrome (2312124212132).

The spelling of 1110102202021 in words is "one trillion, one hundred ten billion, one hundred two million, two hundred two thousand, twenty-one".