12001210101111 has 16 divisors (see below), whose sum is σ = 19950063545088. Its totient is φ = 6234394857600.

The previous prime is 12001210101109. The next prime is 12001210101151. The reversal of 12001210101111 is 11110101210021.

It is not a de Polignac number, because 12001210101111 - 2¹ = 12001210101109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001210101151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25976645010 + ... + 25976645471.

It is an arithmetic number, because the mean of its divisors is an integer number (1246878971568).

Almost surely, 2^{12001210101111} is an apocalyptic number.

12001210101111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12001210101111 is a deficient number, since it is larger than the sum of its proper divisors (7948853443977).

12001210101111 is a wasteful number, since it uses less digits than its factorization.

12001210101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51953290502.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12001210101111 its reverse (11110101210021), we get a palindrome (23111311311132).

The spelling of 12001210101111 in words is "twelve trillion, one billion, two hundred ten million, one hundred one thousand, one hundred eleven".