22222302320 has 20 divisors (see below), whose sum is σ = 51666853080. Its totient is φ = 8888920896.

The previous prime is 22222302313. The next prime is 22222302329. The reversal of 22222302320 is 2320322222.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22222302292 and 22222302301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222302329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138889310 + ... + 138889469.

It is an arithmetic number, because the mean of its divisors is an integer number (2583342654).

Almost surely, 2^22222302320 is an apocalyptic number.

22222302320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222302320 is an abundant number, since it is smaller than the sum of its proper divisors (29444550760).

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

22222302320 is a wasteful number, since it uses less digits than its factorization.

22222302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277778792 (or 277778786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 22222302320 its reverse (2320322222), we get a palindrome (24542624542).

The spelling of 22222302320 in words is "twenty-two billion, two hundred twenty-two million, three hundred two thousand, three hundred twenty".