12100201111212 has 24 divisors (see below), whose sum is σ = 28233893033136. Its totient is φ = 4033387450368.

The previous prime is 12100201111189. The next prime is 12100201111213. The reversal of 12100201111212 is 21211110200121.

It is a happy number.

It is a super-2 number, since 2×12100201111212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100201111191 and 12100201111200.

It is not an unprimeable number, because it can be changed into a prime (12100201111213) 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, 2761708 + ... + 5641580.

It is an arithmetic number, because the mean of its divisors is an integer number (1176412209714).

Almost surely, 2^{12100201111212} is an apocalyptic number.

12100201111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12100201111212 is an abundant number, since it is smaller than the sum of its proper divisors (16133691921924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12100201111212 is a wasteful number, since it uses less digits than its factorization.

12100201111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230017 (or 3230015 counting only the distinct ones).

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

Adding to 12100201111212 its reverse (21211110200121), we get a palindrome (33311311311333).

It can be divided in two parts, 1210020 and 1111212, that added together give a palindrome (2321232).

The spelling of 12100201111212 in words is "twelve trillion, one hundred billion, two hundred one million, one hundred eleven thousand, two hundred twelve".