1120111021021 has 2 divisors, whose sum is σ = 1120111021022. Its totient is φ = 1120111021020.

The previous prime is 1120111020961. The next prime is 1120111021037. The reversal of 1120111021021 is 1201201110211.

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., 744102912996 + 376008108025 = 862614^2 + 613195^2 .

It is an emirp because it is prime and its reverse (1201201110211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120111021021 - 2⁷ = 1120111020893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120111020992 and 1120111021010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120111021061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560055510510 + 560055510511.

It is an arithmetic number, because the mean of its divisors is an integer number (560055510511).

Almost surely, 2^{1120111021021} is an apocalyptic number.

It is an amenable number.

1120111021021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120111021021 is an equidigital number, since it uses as much as digits as its factorization.

1120111021021 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 1120111021021 its reverse (1201201110211), we get a palindrome (2321312131232).

The spelling of 1120111021021 in words is "one trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, twenty-one".