12101021122011 has 16 divisors (see below), whose sum is σ = 17118874220544. Its totient is φ = 7577206591104.

The previous prime is 12101021122009. The next prime is 12101021122027. The reversal of 12101021122011 is 11022112010121.

It is a happy number.

It is not a de Polignac number, because 12101021122011 - 2¹ = 12101021122009 is a prime.

It is a super-2 number, since 2×12101021122011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12101021122061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243583915 + ... + 243633588.

It is an arithmetic number, because the mean of its divisors is an integer number (1069929638784).

Almost surely, 2^{12101021122011} is an apocalyptic number.

12101021122011 is a deficient number, since it is larger than the sum of its proper divisors (5017853098533).

12101021122011 is a wasteful number, since it uses less digits than its factorization.

12101021122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487218010.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12101021122011 its reverse (11022112010121), we get a palindrome (23123133132132).

The spelling of 12101021122011 in words is "twelve trillion, one hundred one billion, twenty-one million, one hundred twenty-two thousand, eleven".