12101012111011 has 8 divisors (see below), whose sum is σ = 12104093287424. Its totient is φ = 12097931194440.

The previous prime is 12101012111009. The next prime is 12101012111063. The reversal of 12101012111011 is 11011121010121.

12101012111011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12101012111011 - 2¹ = 12101012111009 is a prime.

It is a super-2 number, since 2×12101012111011² (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 = 12101012110982 and 12101012111000.

It is not an unprimeable number, because it can be changed into a prime (12101012111411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120421390 + ... + 120521836.

It is an arithmetic number, because the mean of its divisors is an integer number (1513011660928).

Almost surely, 2^{12101012111011} is an apocalyptic number.

12101012111011 is a deficient number, since it is larger than the sum of its proper divisors (3081176413).

12101012111011 is a wasteful number, since it uses less digits than its factorization.

12101012111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129921.

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

Adding to 12101012111011 its reverse (11011121010121), we get a palindrome (23112133121132).

It can be divided in two parts, 121010121 and 11011, that multiplied together give a palindrome (1332442442331).

The spelling of 12101012111011 in words is "twelve trillion, one hundred one billion, twelve million, one hundred eleven thousand, eleven".