22282697220 has 288 divisors, whose sum is σ = 75149485824. Its totient is φ = 4828999680.

The previous prime is 22282697167. The next prime is 22282697251. The reversal of 22282697220 is 2279628222.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26122314 + ... + 26123166.

Almost surely, 2^22282697220 is an apocalyptic number.

22282697220 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 22282697220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37574742912).

22282697220 is an abundant number, since it is smaller than the sum of its proper divisors (52866788604).

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

22282697220 is a wasteful number, since it uses less digits than its factorization.

22282697220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 22282697220 in words is "twenty-two billion, two hundred eighty-two million, six hundred ninety-seven thousand, two hundred twenty".