22233220212 has 192 divisors, whose sum is σ = 62892032000. Its totient is φ = 6104004480.

The previous prime is 22233220189. The next prime is 22233220231. The reversal of 22233220212 is 21202233222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20797614 + ... + 20798682.

Almost surely, 2^22233220212 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 22233220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31446016000).

22233220212 is an abundant number, since it is smaller than the sum of its proper divisors (40658811788).

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

22233220212 is a wasteful number, since it uses less digits than its factorization.

22233220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22233220212 its reverse (21202233222), we get a palindrome (43435453434).

The spelling of 22233220212 in words is "twenty-two billion, two hundred thirty-three million, two hundred twenty thousand, two hundred twelve".