22233210012 has 144 divisors (see below), whose sum is σ = 64790544000. Its totient is φ = 6370939008.

The previous prime is 22233210001. The next prime is 22233210017. The reversal of 22233210012 is 21001233222.

22233210012 is a `hidden beast` number, since 222 + 332 + 100 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233210017) 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 47 ways as a sum of consecutive naturals, for example, 503439 + ... + 545817.

Almost surely, 2^22233210012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22233210012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32395272000).

22233210012 is an abundant number, since it is smaller than the sum of its proper divisors (42557333988).

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

22233210012 is a wasteful number, since it uses less digits than its factorization.

22233210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42480 (or 42475 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22233210012 its reverse (21001233222), we get a palindrome (43234443234).

It can be divided in two parts, 2223 and 3210012, that multiplied together give a square (7135856676 = 84474²).

The spelling of 22233210012 in words is "twenty-two billion, two hundred thirty-three million, two hundred ten thousand, twelve".