10261111222111 has 2 divisors, whose sum is σ = 10261111222112. Its totient is φ = 10261111222110.

The previous prime is 10261111222031. The next prime is 10261111222123. The reversal of 10261111222111 is 11122211116201.

It is a strong prime.

It is an emirp because it is prime and its reverse (11122211116201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10261111222111 - 2³⁷ = 10123672268639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10261111222151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130555611055 + 5130555611056.

It is an arithmetic number, because the mean of its divisors is an integer number (5130555611056).

Almost surely, 2^{10261111222111} is an apocalyptic number.

10261111222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10261111222111 is an equidigital number, since it uses as much as digits as its factorization.

10261111222111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 22.

Adding to 10261111222111 its reverse (11122211116201), we get a palindrome (21383322338312).

The spelling of 10261111222111 in words is "ten trillion, two hundred sixty-one billion, one hundred eleven million, two hundred twenty-two thousand, one hundred eleven".