12020020212111 has 4 divisors (see below), whose sum is σ = 16026693616152. Its totient is φ = 8013346808072.

The previous prime is 12020020212103. The next prime is 12020020212133. The reversal of 12020020212111 is 11121202002021.

12020020212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12020020212111 - 2³ = 12020020212103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020210111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003336702016 + ... + 2003336702021.

It is an arithmetic number, because the mean of its divisors is an integer number (4006673404038).

Almost surely, 2^{12020020212111} is an apocalyptic number.

12020020212111 is a deficient number, since it is larger than the sum of its proper divisors (4006673404041).

12020020212111 is an equidigital number, since it uses as much as digits as its factorization.

12020020212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006673404040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12020020212111 its reverse (11121202002021), we get a palindrome (23141222214132).

The spelling of 12020020212111 in words is "twelve trillion, twenty billion, twenty million, two hundred twelve thousand, one hundred eleven".