12001223020111 has 8 divisors (see below), whose sum is σ = 12925486605024. Its totient is φ = 11077115518560.

The previous prime is 12001223020009. The next prime is 12001223020141. The reversal of 12001223020111 is 11102032210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12001223020111 - 2⁷ = 12001223019983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001223020141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38861116 + ... + 39168721.

It is an arithmetic number, because the mean of its divisors is an integer number (1615685825628).

Almost surely, 2^{12001223020111} is an apocalyptic number.

12001223020111 is a deficient number, since it is larger than the sum of its proper divisors (924263584913).

12001223020111 is a wasteful number, since it uses less digits than its factorization.

12001223020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78041681.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12001223020111 its reverse (11102032210021), we get a palindrome (23103255230132).

The spelling of 12001223020111 in words is "twelve trillion, one billion, two hundred twenty-three million, twenty thousand, one hundred eleven".