1121021102111 has 2 divisors, whose sum is σ = 1121021102112. Its totient is φ = 1121021102110.

The previous prime is 1121021102057. The next prime is 1121021102119. The reversal of 1121021102111 is 1112011201211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121021102111 - 2¹⁴ = 1121021085727 is a prime.

It is a super-2 number, since 2×1121021102111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121021102119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560510551055 + 560510551056.

It is an arithmetic number, because the mean of its divisors is an integer number (560510551056).

Almost surely, 2^{1121021102111} is an apocalyptic number.

1121021102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121021102111 is an equidigital number, since it uses as much as digits as its factorization.

1121021102111 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 14.

Adding to 1121021102111 its reverse (1112011201211), we get a palindrome (2233032303322).

The spelling of 1121021102111 in words is "one trillion, one hundred twenty-one billion, twenty-one million, one hundred two thousand, one hundred eleven".