221222113204 has 48 divisors (see below), whose sum is σ = 425330801280. Its totient is φ = 100210176000.

The previous prime is 221222113193. The next prime is 221222113207. The reversal of 221222113204 is 402311222122.

It is a super-2 number, since 2×221222113204² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222113207) 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, 9205204 + ... + 9229204.

It is an arithmetic number, because the mean of its divisors is an integer number (8861058360).

Almost surely, 2^221222113204 is an apocalyptic number.

It is an amenable number.

221222113204 is a deficient number, since it is larger than the sum of its proper divisors (204108688076).

221222113204 is a wasteful number, since it uses less digits than its factorization.

221222113204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29320 (or 29318 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 221222113204 its reverse (402311222122), we get a palindrome (623533335326).

The spelling of 221222113204 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred thirteen thousand, two hundred four".