12111102002121 has 8 divisors (see below), whose sum is σ = 16161190281024. Its totient is φ = 8067540862320.

The previous prime is 12111102002117. The next prime is 12111102002123. The reversal of 12111102002121 is 12120020111121.

It is a happy number.

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

It is not a de Polignac number, because 12111102002121 - 2² = 12111102002117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12111102002121.

It is not an unprimeable number, because it can be changed into a prime (12111102002123) 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, 1631780445 + ... + 1631787866.

It is an arithmetic number, because the mean of its divisors is an integer number (2020148785128).

Almost surely, 2^{12111102002121} is an apocalyptic number.

It is an amenable number.

12111102002121 is a deficient number, since it is larger than the sum of its proper divisors (4050088278903).

12111102002121 is a wasteful number, since it uses less digits than its factorization.

12111102002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263569551.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111102002121 its reverse (12120020111121), we get a palindrome (24231122113242).

The spelling of 12111102002121 in words is "twelve trillion, one hundred eleven billion, one hundred two million, two thousand, one hundred twenty-one".