12011221100231 has 8 divisors (see below), whose sum is σ = 12453705026400. Its totient is φ = 11570624100000.

The previous prime is 12011221100227. The next prime is 12011221100233. The reversal of 12011221100231 is 13200112211021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12011221100231 - 2² = 12011221100227 is a prime.

It is a super-2 number, since 2×12011221100231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011221100233) 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, 471718520 + ... + 471743981.

It is an arithmetic number, because the mean of its divisors is an integer number (1556713128300).

Almost surely, 2^{12011221100231} is an apocalyptic number.

12011221100231 is a deficient number, since it is larger than the sum of its proper divisors (442483926169).

12011221100231 is an equidigital number, since it uses as much as digits as its factorization.

12011221100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943462969.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12011221100231 its reverse (13200112211021), we get a palindrome (25211333311252).

The spelling of 12011221100231 in words is "twelve trillion, eleven billion, two hundred twenty-one million, one hundred thousand, two hundred thirty-one".