22012234332 has 72 divisors (see below), whose sum is σ = 56487062016. Its totient is φ = 6666660000.

The previous prime is 22012234319. The next prime is 22012234351. The reversal of 22012234332 is 23343221022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3759207 + ... + 3765057.

It is an arithmetic number, because the mean of its divisors is an integer number (784542528).

Almost surely, 2^22012234332 is an apocalyptic number.

22012234332 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 22012234332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28243531008).

22012234332 is an abundant number, since it is smaller than the sum of its proper divisors (34474827684).

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

22012234332 is a wasteful number, since it uses less digits than its factorization.

22012234332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471 (or 8458 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 22012234332 its reverse (23343221022), we get a palindrome (45355455354).

The spelling of 22012234332 in words is "twenty-two billion, twelve million, two hundred thirty-four thousand, three hundred thirty-two".