12103021211211 has 24 divisors (see below), whose sum is σ = 19982422478304. Its totient is φ = 6915031845120.

The previous prime is 12103021211189. The next prime is 12103021211221. The reversal of 12103021211211 is 11211212030121.

It is a happy number.

12103021211211 is a `hidden beast` number, since 1 + 210 + 30 + 2 + 1 + 211 + 211 = 666.

12103021211211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12103021211211 - 2¹⁸ = 12103020949067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103021211221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13166820 + ... + 14056001.

It is an arithmetic number, because the mean of its divisors is an integer number (832600936596).

Almost surely, 2^{12103021211211} is an apocalyptic number.

12103021211211 is a deficient number, since it is larger than the sum of its proper divisors (7879401267093).

12103021211211 is a wasteful number, since it uses less digits than its factorization.

12103021211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27229891 (or 27229888 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12103021211211 its reverse (11211212030121), we get a palindrome (23314233241332).

The spelling of 12103021211211 in words is "twelve trillion, one hundred three billion, twenty-one million, two hundred eleven thousand, two hundred eleven".