12000022001 has 16 divisors (see below), whose sum is σ = 13685234688. Its totient is φ = 10415605200.

The previous prime is 12000021961. The next prime is 12000022031. The reversal of 12000022001 is 10022000021.

It is not a de Polignac number, because 12000022001 - 2¹⁸ = 11999759857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000022001.

It is not an unprimeable number, because it can be changed into a prime (12000022031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95036 + ... + 181746.

It is an arithmetic number, because the mean of its divisors is an integer number (855327168).

Almost surely, 2^12000022001 is an apocalyptic number.

12000022001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000022001 is a deficient number, since it is larger than the sum of its proper divisors (1685212687).

12000022001 is a wasteful number, since it uses less digits than its factorization.

12000022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87292.

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

Adding to 12000022001 its reverse (10022000021), we get a palindrome (22022022022).

The spelling of 12000022001 in words is "twelve billion, twenty-two thousand, one".