12021200101111 has 2 divisors, whose sum is σ = 12021200101112. Its totient is φ = 12021200101110.

The previous prime is 12021200101081. The next prime is 12021200101123. The reversal of 12021200101111 is 11110100212021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12021200101111 - 2²³ = 12021191712503 is a prime.

It is a super-2 number, since 2×12021200101111² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12021200101091 and 12021200101100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021200105111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010600050555 + 6010600050556.

It is an arithmetic number, because the mean of its divisors is an integer number (6010600050556).

Almost surely, 2^{12021200101111} is an apocalyptic number.

12021200101111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021200101111 is an equidigital number, since it uses as much as digits as its factorization.

12021200101111 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 13.

Adding to 12021200101111 its reverse (11110100212021), we get a palindrome (23131300313132).

The spelling of 12021200101111 in words is "twelve trillion, twenty-one billion, two hundred million, one hundred one thousand, one hundred eleven".