12011221201 has 8 divisors (see below), whose sum is σ = 13760675840. Its totient is φ = 10270158048.

The previous prime is 12011221153. The next prime is 12011221213. The reversal of 12011221201 is 10212211021.

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 12011221201 - 2¹¹ = 12011219153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011251201) 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, 2094801 + ... + 2100526.

It is an arithmetic number, because the mean of its divisors is an integer number (1720084480).

Almost surely, 2^12011221201 is an apocalyptic number.

It is an amenable number.

12011221201 is a deficient number, since it is larger than the sum of its proper divisors (1749454639).

12011221201 is an equidigital number, since it uses as much as digits as its factorization.

12011221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195743.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12011221201 its reverse (10212211021), we get a palindrome (22223432222).

The spelling of 12011221201 in words is "twelve billion, eleven million, two hundred twenty-one thousand, two hundred one".