22220022222220 has 48 divisors (see below), whose sum is σ = 47997697144320. Its totient is φ = 8636320234944.

The previous prime is 22220022222149. The next prime is 22220022222269. The reversal of 22220022222220 is 2222222002222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22220022222191 and 22220022222200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84899274 + ... + 85160593.

It is an arithmetic number, because the mean of its divisors is an integer number (999952023840).

Almost surely, 2^{22220022222220} is an apocalyptic number.

22220022222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220022222220 is an abundant number, since it is smaller than the sum of its proper divisors (25777674922100).

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

22220022222220 is a wasteful number, since it uses less digits than its factorization.

22220022222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170060062 (or 170060060 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22220022222220 its reverse (2222222002222), we get a palindrome (24442244224442).

The spelling of 22220022222220 in words is "twenty-two trillion, two hundred twenty billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".