12020211101211 has 32 divisors (see below), whose sum is σ = 16646738918400. Its totient is φ = 7708507741440.

The previous prime is 12020211101207. The next prime is 12020211101299. The reversal of 12020211101211 is 11210111202021.

It is a happy number.

It is not a de Polignac number, because 12020211101211 - 2² = 12020211101207 is a prime.

It is a super-2 number, since 2×12020211101211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12020211103211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106943280 + ... + 107055618.

It is an arithmetic number, because the mean of its divisors is an integer number (520210591200).

Almost surely, 2^{12020211101211} is an apocalyptic number.

12020211101211 is a deficient number, since it is larger than the sum of its proper divisors (4626527817189).

12020211101211 is a wasteful number, since it uses less digits than its factorization.

12020211101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123299.

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

Adding to 12020211101211 its reverse (11210111202021), we get a palindrome (23230322303232).

The spelling of 12020211101211 in words is "twelve trillion, twenty billion, two hundred eleven million, one hundred one thousand, two hundred eleven".