12102001020111 has 8 divisors (see below), whose sum is σ = 16656517533184. Its totient is φ = 7807742593560.

The previous prime is 12102001020107. The next prime is 12102001020113. The reversal of 12102001020111 is 11102010020121.

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

It is not a de Polignac number, because 12102001020111 - 2² = 12102001020107 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 (12102001020113) 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, 65064521521 + ... + 65064521706.

It is an arithmetic number, because the mean of its divisors is an integer number (2082064691648).

Almost surely, 2^{12102001020111} is an apocalyptic number.

12102001020111 is a deficient number, since it is larger than the sum of its proper divisors (4554516513073).

12102001020111 is a wasteful number, since it uses less digits than its factorization.

12102001020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130129043261.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12102001020111 its reverse (11102010020121), we get a palindrome (23204011040232).

It can be divided in two parts, 121020010 and 20111, that added together give a palindrome (121040121).

The spelling of 12102001020111 in words is "twelve trillion, one hundred two billion, one million, twenty thousand, one hundred eleven".