12223222000 has 160 divisors (see below), whose sum is σ = 32567790528. Its totient is φ = 4400000000.

The previous prime is 12223221961. The next prime is 12223222009. The reversal of 12223222000 is 22232221.

It is a super-2 number, since 2×12223222000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223222009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2219250 + ... + 2224750.

Almost surely, 2^12223222000 is an apocalyptic number.

12223222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12223222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16283895264).

12223222000 is an abundant number, since it is smaller than the sum of its proper divisors (20344568528).

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

12223222000 is a wasteful number, since it uses less digits than its factorization.

12223222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 12223222000 its reverse (22232221), we get a palindrome (12245454221).

The spelling of 12223222000 in words is "twelve billion, two hundred twenty-three million, two hundred twenty-two thousand".