22220213312 has 224 divisors, whose sum is σ = 50887457280. Its totient is φ = 9538560000.

The previous prime is 22220213311. The next prime is 22220213329. The reversal of 22220213312 is 21331202222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22220213311) 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, 203855114 + ... + 203855222.

Almost surely, 2^22220213312 is an apocalyptic number.

22220213312 is a gapful number since it is divisible by the number (22) 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 22220213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25443728640).

22220213312 is an abundant number, since it is smaller than the sum of its proper divisors (28667243968).

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

22220213312 is a wasteful number, since it uses less digits than its factorization.

22220213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22220213312 its reverse (21331202222), we get a palindrome (43551415534).

It can be divided in two parts, 22220 and 213312, that added together give a palindrome (235532).

The spelling of 22220213312 in words is "twenty-two billion, two hundred twenty million, two hundred thirteen thousand, three hundred twelve".