12221203838 has 8 divisors (see below), whose sum is σ = 18963937080. Its totient is φ = 5899891480.

The previous prime is 12221203837. The next prime is 12221203871. The reversal of 12221203838 is 83830212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221203837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105355148 + ... + 105355263.

It is an arithmetic number, because the mean of its divisors is an integer number (2370492135).

Almost surely, 2^12221203838 is an apocalyptic number.

12221203838 is a deficient number, since it is larger than the sum of its proper divisors (6742733242).

12221203838 is a wasteful number, since it uses less digits than its factorization.

12221203838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210710442.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 12221203838 in words is "twelve billion, two hundred twenty-one million, two hundred three thousand, eight hundred thirty-eight".