22182420220 has 12 divisors (see below), whose sum is σ = 46583082504. Its totient is φ = 8872968080.

The previous prime is 22182420077. The next prime is 22182420241. The reversal of 22182420220 is 2202428122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554560486 + ... + 554560525.

It is an arithmetic number, because the mean of its divisors is an integer number (3881923542).

Almost surely, 2^22182420220 is an apocalyptic number.

22182420220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22182420220 is an abundant number, since it is smaller than the sum of its proper divisors (24400662284).

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

22182420220 is a wasteful number, since it uses less digits than its factorization.

22182420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109121020 (or 1109121018 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 22182420220 its reverse (2202428122), we get a palindrome (24384848342).

The spelling of 22182420220 in words is "twenty-two billion, one hundred eighty-two million, four hundred twenty thousand, two hundred twenty".