12010221105 has 8 divisors (see below), whose sum is σ = 19216353792. Its totient is φ = 6405451248.

The previous prime is 12010221079. The next prime is 12010221151. The reversal of 12010221105 is 50112201021.

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

It is not a de Polignac number, because 12010221105 - 2¹⁷ = 12010090033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 800681407 = 12010221105 / (1 + 2 + 0 + 1 + 0 + 2 + 2 + 1 + 1 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400340689 + ... + 400340718.

It is an arithmetic number, because the mean of its divisors is an integer number (2402044224).

Almost surely, 2^12010221105 is an apocalyptic number.

12010221105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12010221105 is a deficient number, since it is larger than the sum of its proper divisors (7206132687).

12010221105 is an equidigital number, since it uses as much as digits as its factorization.

12010221105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800681415.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 12010221105 its reverse (50112201021), we get a palindrome (62122422126).

The spelling of 12010221105 in words is "twelve billion, ten million, two hundred twenty-one thousand, one hundred five".