12101200020111 has 16 divisors (see below), whose sum is σ = 16617956072544. Its totient is φ = 7827190677504.

The previous prime is 12101200020103. The next prime is 12101200020131. The reversal of 12101200020111 is 11102000210121.

It is not a de Polignac number, because 12101200020111 - 2³ = 12101200020103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101200020131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154379826 + ... + 154458191.

It is an arithmetic number, because the mean of its divisors is an integer number (1038622254534).

Almost surely, 2^{12101200020111} is an apocalyptic number.

12101200020111 is a deficient number, since it is larger than the sum of its proper divisors (4516756052433).

12101200020111 is a wasteful number, since it uses less digits than its factorization.

12101200020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308838410.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101200020111 its reverse (11102000210121), we get a palindrome (23203200230232).

The spelling of 12101200020111 in words is "twelve trillion, one hundred one billion, two hundred million, twenty thousand, one hundred eleven".