12111101101012 has 12 divisors (see below), whose sum is σ = 21462710812480. Its totient is φ = 5978898011736.

The previous prime is 12111101100983. The next prime is 12111101101039. The reversal of 12111101101012 is 21010110111121.

It is a junction number, because it is equal to n+sod(n) for n = 12111101100983 and 12111101101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19163134338 + ... + 19163134969.

Almost surely, 2^{12111101101012} is an apocalyptic number.

It is an amenable number.

12111101101012 is a deficient number, since it is larger than the sum of its proper divisors (9351609711468).

12111101101012 is a wasteful number, since it uses less digits than its factorization.

12111101101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38326269390 (or 38326269388 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 12111101101012 its reverse (21010110111121), we get a palindrome (33121211212133).

The spelling of 12111101101012 in words is "twelve trillion, one hundred eleven billion, one hundred one million, one hundred one thousand, twelve".