12021211010111 has 2 divisors, whose sum is σ = 12021211010112. Its totient is φ = 12021211010110.

The previous prime is 12021211010101. The next prime is 12021211010129. The reversal of 12021211010111 is 11101011212021.

12021211010111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021211010111 is a prime.

It is a super-2 number, since 2×12021211010111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021211010101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010605505055 + 6010605505056.

It is an arithmetic number, because the mean of its divisors is an integer number (6010605505056).

Almost surely, 2^{12021211010111} is an apocalyptic number.

12021211010111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021211010111 is an equidigital number, since it uses as much as digits as its factorization.

12021211010111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12021211010111 its reverse (11101011212021), we get a palindrome (23122222222132).

The spelling of 12021211010111 in words is "twelve trillion, twenty-one billion, two hundred eleven million, ten thousand, one hundred eleven".