12101122001111 has 16 divisors (see below), whose sum is σ = 14363266733088. Its totient is φ = 10050099148800.

The previous prime is 12101122001083. The next prime is 12101122001113. The reversal of 12101122001111 is 11110022110121.

It is a cyclic number.

It is not a de Polignac number, because 12101122001111 - 2¹⁰ = 12101122000087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101122001113) 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, 436188350 + ... + 436216091.

It is an arithmetic number, because the mean of its divisors is an integer number (897704170818).

Almost surely, 2^{12101122001111} is an apocalyptic number.

12101122001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12101122001111 is a deficient number, since it is larger than the sum of its proper divisors (2262144731977).

12101122001111 is a wasteful number, since it uses less digits than its factorization.

12101122001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872404562.

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

Adding to 12101122001111 its reverse (11110022110121), we get a palindrome (23211144111232).

It can be divided in two parts, 121011 and 22001111, that added together give a palindrome (22122122).

The spelling of 12101122001111 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, one thousand, one hundred eleven".