12100201221111 has 8 divisors (see below), whose sum is σ = 16133635818624. Its totient is φ = 8066783718840.

The previous prime is 12100201221047. The next prime is 12100201221127. The reversal of 12100201221111 is 11112210200121.

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 12100201221111 - 2⁶ = 12100201221047 is a prime.

It is a super-2 number, since 2×12100201221111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100201221011) 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, 2519361 + ... + 5526986.

It is an arithmetic number, because the mean of its divisors is an integer number (2016704477328).

Almost surely, 2^{12100201221111} is an apocalyptic number.

12100201221111 is a deficient number, since it is larger than the sum of its proper divisors (4033434597513).

12100201221111 is an equidigital number, since it uses as much as digits as its factorization.

12100201221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547621.

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

Adding to 12100201221111 its reverse (11112210200121), we get a palindrome (23212411421232).

The spelling of 12100201221111 in words is "twelve trillion, one hundred billion, two hundred one million, two hundred twenty-one thousand, one hundred eleven".