1100000011021 has 2 divisors, whose sum is σ = 1100000011022. Its totient is φ = 1100000011020.

The previous prime is 1100000010883. The next prime is 1100000011039. The reversal of 1100000011021 is 1201100000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075391814121 + 24608196900 = 1037011^2 + 156870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100000011021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100000010995 and 1100000011013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100000011421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000005510 + 550000005511.

It is an arithmetic number, because the mean of its divisors is an integer number (550000005511).

Almost surely, 2^{1100000011021} is an apocalyptic number.

It is an amenable number.

1100000011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100000011021 is an equidigital number, since it uses as much as digits as its factorization.

1100000011021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1100000011021 its reverse (1201100000011), we get a palindrome (2301100011032).

The spelling of 1100000011021 in words is "one trillion, one hundred billion, eleven thousand, twenty-one".