12011022001 has 8 divisors (see below), whose sum is σ = 13132785600. Its totient is φ = 10894233840.

The previous prime is 12011021977. The next prime is 12011022031. The reversal of 12011022001 is 10022011021.

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 12011022001 - 2¹³ = 12011013809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238806 + ... + 1248463.

It is an arithmetic number, because the mean of its divisors is an integer number (1641598200).

Almost surely, 2^12011022001 is an apocalyptic number.

12011022001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011022001 is a deficient number, since it is larger than the sum of its proper divisors (1121763599).

12011022001 is a wasteful number, since it uses less digits than its factorization.

12011022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487719.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12011022001 its reverse (10022011021), we get a palindrome (22033033022).

The spelling of 12011022001 in words is "twelve billion, eleven million, twenty-two thousand, one".