22214947328 has 90 divisors (see below), whose sum is σ = 51688211553. Its totient is φ = 9510574080.

The previous prime is 22214947309. The next prime is 22214947351. The reversal of 22214947328 is 82374941222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 21889794304 + 325153024 = 147952^2 + 18032^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105392.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23607338 + ... + 23608278.

Almost surely, 2^22214947328 is an apocalyptic number.

22214947328 is a gapful number since it is divisible by the number (28) 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 22214947328

22214947328 is an abundant number, since it is smaller than the sum of its proper divisors (29473264225).

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

22214947328 is an frugal number, since it uses more digits than its factorization.

22214947328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 950 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The spelling of 22214947328 in words is "twenty-two billion, two hundred fourteen million, nine hundred forty-seven thousand, three hundred twenty-eight".