12221201214 has 32 divisors (see below), whose sum is σ = 27170254080. Its totient is φ = 4071929400.

The previous prime is 12221201189. The next prime is 12221201219. The reversal of 12221201214 is 41210212221.

It is a super-2 number, since 2×12221201214² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221201219) 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 15 ways as a sum of consecutive naturals, for example, 75829 + ... + 173759.

It is an arithmetic number, because the mean of its divisors is an integer number (849070440).

Almost surely, 2^12221201214 is an apocalyptic number.

12221201214 is an abundant number, since it is smaller than the sum of its proper divisors (14949052866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221201214 is a wasteful number, since it uses less digits than its factorization.

12221201214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100253 (or 100247 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221201214 its reverse (41210212221), we get a palindrome (53431413435).

The spelling of 12221201214 in words is "twelve billion, two hundred twenty-one million, two hundred one thousand, two hundred fourteen".