12010101211111 has 4 divisors (see below), whose sum is σ = 12162127808800. Its totient is φ = 11858074613424.

The previous prime is 12010101211049. The next prime is 12010101211133. The reversal of 12010101211111 is 11111210101021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12010101211111 - 2²⁵ = 12010067656679 is a prime.

It is a super-2 number, since 2×12010101211111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010101211091 and 12010101211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010101211151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76013298726 + ... + 76013298883.

It is an arithmetic number, because the mean of its divisors is an integer number (3040531952200).

Almost surely, 2^{12010101211111} is an apocalyptic number.

12010101211111 is a deficient number, since it is larger than the sum of its proper divisors (152026597689).

12010101211111 is an equidigital number, since it uses as much as digits as its factorization.

12010101211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152026597688.

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

Adding to 12010101211111 its reverse (11111210101021), we get a palindrome (23121311312132).

The spelling of 12010101211111 in words is "twelve trillion, ten billion, one hundred one million, two hundred eleven thousand, one hundred eleven".