12020101111111 has 12 divisors (see below), whose sum is σ = 12290568348240. Its totient is φ = 11755385295680.

The previous prime is 12020101111093. The next prime is 12020101111171. The reversal of 12020101111111 is 11111110102021.

It is not a de Polignac number, because 12020101111111 - 2³³ = 12011511176519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020101111091 and 12020101111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020101111171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6006046 + ... + 7753243.

It is an arithmetic number, because the mean of its divisors is an integer number (1024214029020).

Almost surely, 2^{12020101111111} is an apocalyptic number.

12020101111111 is a deficient number, since it is larger than the sum of its proper divisors (270467237129).

12020101111111 is an equidigital number, since it uses as much as digits as its factorization.

12020101111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759706 (or 13759653 counting only the distinct ones).

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

Adding to 12020101111111 its reverse (11111110102021), we get a palindrome (23131211213132).

The spelling of 12020101111111 in words is "twelve trillion, twenty billion, one hundred one million, one hundred eleven thousand, one hundred eleven".