22212437632 has 128 divisors (see below), whose sum is σ = 56345518080. Its totient is φ = 8469888000.

The previous prime is 22212437623. The next prime is 22212437651. The reversal of 22212437632 is 23673421222.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439257 + ... + 487207.

It is an arithmetic number, because the mean of its divisors is an integer number (440199360).

Almost surely, 2^22212437632 is an apocalyptic number.

22212437632 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 22212437632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28172759040).

22212437632 is an abundant number, since it is smaller than the sum of its proper divisors (34133080448).

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

22212437632 is a wasteful number, since it uses less digits than its factorization.

22212437632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48030 (or 48018 counting only the distinct ones).

The product of its digits is 48384, while the sum is 34.

Adding to 22212437632 its reverse (23673421222), we get a palindrome (45885858854).

The spelling of 22212437632 in words is "twenty-two billion, two hundred twelve million, four hundred thirty-seven thousand, six hundred thirty-two".