22211332220 has 96 divisors (see below), whose sum is σ = 59250756096. Its totient is φ = 6792364800.

The previous prime is 22211332217. The next prime is 22211332271. The reversal of 22211332220 is 2223311222.

It is a happy number.

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 = 22211332192 and 22211332201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54446 + ... + 217685.

It is an arithmetic number, because the mean of its divisors is an integer number (617195376).

Almost surely, 2^22211332220 is an apocalyptic number.

22211332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211332220 is an abundant number, since it is smaller than the sum of its proper divisors (37039423876).

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

22211332220 is a wasteful number, since it uses less digits than its factorization.

22211332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272211 (or 272209 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22211332220 its reverse (2223311222), we get a palindrome (24434643442).

The spelling of 22211332220 in words is "twenty-two billion, two hundred eleven million, three hundred thirty-two thousand, two hundred twenty".