12010002221 has 8 divisors (see below), whose sum is σ = 13726883520. Its totient is φ = 10293412608.

The previous prime is 12010002209. The next prime is 12010002241. The reversal of 12010002221 is 12220001021.

It is a happy number.

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 12010002221 - 2²² = 12005807917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010002241) 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, 23885 + ... + 156813.

It is an arithmetic number, because the mean of its divisors is an integer number (1715860440).

Almost surely, 2^12010002221 is an apocalyptic number.

It is an amenable number.

12010002221 is a deficient number, since it is larger than the sum of its proper divisors (1716881299).

12010002221 is a wasteful number, since it uses less digits than its factorization.

12010002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145843.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12010002221 its reverse (12220001021), we get a palindrome (24230003242).

The spelling of 12010002221 in words is "twelve billion, ten million, two thousand, two hundred twenty-one".