22217997360 has 320 divisors, whose sum is σ = 77238806400. Its totient is φ = 5276823552.

The previous prime is 22217997349. The next prime is 22217997409. The reversal of 22217997360 is 6379971222.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 15290394 + ... + 15291846.

It is an arithmetic number, because the mean of its divisors is an integer number (241371270).

Almost surely, 2^22217997360 is an apocalyptic number.

22217997360 is a gapful number since it is divisible by the number (20) 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 22217997360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38619403200).

22217997360 is an abundant number, since it is smaller than the sum of its proper divisors (55020809040).

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

22217997360 is a wasteful number, since it uses less digits than its factorization.

22217997360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 22217997360 in words is "twenty-two billion, two hundred seventeen million, nine hundred ninety-seven thousand, three hundred sixty".