1102021111111 has 2 divisors, whose sum is σ = 1102021111112. Its totient is φ = 1102021111110.

The previous prime is 1102021111039. The next prime is 1102021111117. The reversal of 1102021111111 is 1111111202011.

It is a strong prime.

It is an emirp because it is prime and its reverse (1111111202011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102021111111 is a prime.

1102021111111 is a modest number, since divided by 1111111 gives 110202 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1102021111091 and 1102021111100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102021111117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551010555555 + 551010555556.

It is an arithmetic number, because the mean of its divisors is an integer number (551010555556).

Almost surely, 2^{1102021111111} is an apocalyptic number.

1102021111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102021111111 is an equidigital number, since it uses as much as digits as its factorization.

1102021111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1102021111111 its reverse (1111111202011), we get a palindrome (2213132313122).

The spelling of 1102021111111 in words is "one trillion, one hundred two billion, twenty-one million, one hundred eleven thousand, one hundred eleven".