12020111001211 has 16 divisors (see below), whose sum is σ = 12120789058560. Its totient is φ = 11919959663040.

The previous prime is 12020111001191. The next prime is 12020111001253. The reversal of 12020111001211 is 11210011102021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12020111001211 - 2⁵ = 12020111001179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020111001191 and 12020111001200.

It is not an unprimeable number, because it can be changed into a prime (12020111001271) 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, 57830370 + ... + 58037848.

It is an arithmetic number, because the mean of its divisors is an integer number (757549316160).

Almost surely, 2^{12020111001211} is an apocalyptic number.

12020111001211 is a deficient number, since it is larger than the sum of its proper divisors (100678057349).

12020111001211 is a wasteful number, since it uses less digits than its factorization.

12020111001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208746.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12020111001211 its reverse (11210011102021), we get a palindrome (23230122103232).

The spelling of 12020111001211 in words is "twelve trillion, twenty billion, one hundred eleven million, one thousand, two hundred eleven".