1212002000111 has 4 divisors (see below), whose sum is σ = 1385145142992. Its totient is φ = 1038858857232.

The previous prime is 1212002000029. The next prime is 1212002000123. The reversal of 1212002000111 is 1110002002121.

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

It is not a de Polignac number, because 1212002000111 - 2²² = 1211997805807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212002000092 and 1212002000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212002005111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86571571430 + ... + 86571571443.

It is an arithmetic number, because the mean of its divisors is an integer number (346286285748).

Almost surely, 2^{1212002000111} is an apocalyptic number.

1212002000111 is a deficient number, since it is larger than the sum of its proper divisors (173143142881).

1212002000111 is an equidigital number, since it uses as much as digits as its factorization.

1212002000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173143142880.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1212002000111 its reverse (1110002002121), we get a palindrome (2322004002232).

The spelling of 1212002000111 in words is "one trillion, two hundred twelve billion, two million, one hundred eleven", and thus it is an aban number.