12020020112111 has 12 divisors (see below), whose sum is σ = 13257180712776. Its totient is φ = 10889996470320.

The previous prime is 12020020112057. The next prime is 12020020112123. The reversal of 12020020112111 is 11121102002021.

It is not a de Polignac number, because 12020020112111 - 2⁴² = 7621973601007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020112411) 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, 169485041 + ... + 169555946.

It is an arithmetic number, because the mean of its divisors is an integer number (1104765059398).

Almost surely, 2^{12020020112111} is an apocalyptic number.

12020020112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12020020112111 is a deficient number, since it is larger than the sum of its proper divisors (1237160600665).

12020020112111 is a wasteful number, since it uses less digits than its factorization.

12020020112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339041302 (or 339041291 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12020020112111 its reverse (11121102002021), we get a palindrome (23141122114132).

The spelling of 12020020112111 in words is "twelve trillion, twenty billion, twenty million, one hundred twelve thousand, one hundred eleven".