22232223420 has 96 divisors (see below), whose sum is σ = 68510534400. Its totient is φ = 5341916160.

The previous prime is 22232223413. The next prime is 22232223443. The reversal of 22232223420 is 2432223222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74470 + ... + 223629.

It is an arithmetic number, because the mean of its divisors is an integer number (713651400).

Almost surely, 2^22232223420 is an apocalyptic number.

22232223420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22232223420 is an abundant number, since it is smaller than the sum of its proper divisors (46278310980).

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

22232223420 is a wasteful number, since it uses less digits than its factorization.

22232223420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298235 (or 298233 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 22232223420 its reverse (2432223222), we get a palindrome (24664446642).

The spelling of 22232223420 in words is "twenty-two billion, two hundred thirty-two million, two hundred twenty-three thousand, four hundred twenty".