12222072000 has 168 divisors, whose sum is σ = 43720646112. Its totient is φ = 3259200000.

The previous prime is 12222071951. The next prime is 12222072001. The reversal of 12222072000 is 27022221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (12222072001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12876 + ... + 156875.

Almost surely, 2^12222072000 is an apocalyptic number.

12222072000 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 12222072000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21860323056).

12222072000 is an abundant number, since it is smaller than the sum of its proper divisors (31498574112).

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

12222072000 is a wasteful number, since it uses less digits than its factorization.

12222072000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169784 (or 169761 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

Adding to 12222072000 its reverse (27022221), we get a palindrome (12249094221).

The spelling of 12222072000 in words is "twelve billion, two hundred twenty-two million, seventy-two thousand".