1021110002111 has 2 divisors, whose sum is σ = 1021110002112. Its totient is φ = 1021110002110.

The previous prime is 1021110002057. The next prime is 1021110002203. The reversal of 1021110002111 is 1112000111201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021110002111 - 2²² = 1021105807807 is a prime.

It is a super-2 number, since 2×1021110002111² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021110002092 and 1021110002101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021110002611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510555001055 + 510555001056.

It is an arithmetic number, because the mean of its divisors is an integer number (510555001056).

Almost surely, 2^{1021110002111} is an apocalyptic number.

1021110002111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021110002111 is an equidigital number, since it uses as much as digits as its factorization.

1021110002111 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 11.

Adding to 1021110002111 its reverse (1112000111201), we get a palindrome (2133110113312).

The spelling of 1021110002111 in words is "one trillion, twenty-one billion, one hundred ten million, two thousand, one hundred eleven".