22220002222220 has 96 divisors (see below), whose sum is σ = 54948851435520. Its totient is φ = 7462189602560.

The previous prime is 22220002222207. The next prime is 22220002222283. The reversal of 22220002222220 is 2222220002222.

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 = 22220002222192 and 22220002222201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75565412 + ... + 75858891.

It is an arithmetic number, because the mean of its divisors is an integer number (572383869120).

Almost surely, 2^{22220002222220} is an apocalyptic number.

22220002222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220002222220 is an abundant number, since it is smaller than the sum of its proper divisors (32728849213300).

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

22220002222220 is a wasteful number, since it uses less digits than its factorization.

22220002222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151424375 (or 151424373 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22220002222220 its reverse (2222220002222), we get a palindrome (24442222224442).

The spelling of 22220002222220 in words is "twenty-two trillion, two hundred twenty billion, two million, two hundred twenty-two thousand, two hundred twenty".