12012200221 has 8 divisors (see below), whose sum is σ = 14535771840. Its totient is φ = 9690514368.

The previous prime is 12012200219. The next prime is 12012200227. The reversal of 12012200221 is 12200221021.

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 12012200221 - 2¹ = 12012200219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012200227) 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, 50471311 + ... + 50471548.

It is an arithmetic number, because the mean of its divisors is an integer number (1816971480).

Almost surely, 2^12012200221 is an apocalyptic number.

It is an amenable number.

12012200221 is a deficient number, since it is larger than the sum of its proper divisors (2523571619).

12012200221 is a wasteful number, since it uses less digits than its factorization.

12012200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100942883.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012200221 its reverse (12200221021), we get a palindrome (24212421242).

The spelling of 12012200221 in words is "twelve billion, twelve million, two hundred thousand, two hundred twenty-one".