12011220106 has 8 divisors (see below), whose sum is σ = 18017305920. Its totient is φ = 6005451468.

The previous prime is 12011220083. The next prime is 12011220107. The reversal of 12011220106 is 60102211021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12011220106.

It is not an unprimeable number, because it can be changed into a prime (12011220107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76975 + ... + 173053.

It is an arithmetic number, because the mean of its divisors is an integer number (2252163240).

Almost surely, 2^12011220106 is an apocalyptic number.

12011220106 is a deficient number, since it is larger than the sum of its proper divisors (6006085814).

12011220106 is an equidigital number, since it uses as much as digits as its factorization.

12011220106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158588.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12011220106 its reverse (60102211021), we get a palindrome (72113431127).

The spelling of 12011220106 in words is "twelve billion, eleven million, two hundred twenty thousand, one hundred six".