22002222002220 has 72 divisors (see below), whose sum is σ = 66828237722064. Its totient is φ = 5859508491648.

The previous prime is 22002222002203. The next prime is 22002222002261. The reversal of 22002222002220 is 2220022220022.

22002222002220 is a `hidden beast` number, since 2 + 20 + 0 + 222 + 200 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22002222002193 and 22002222002202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80599914 + ... + 80872433.

It is an arithmetic number, because the mean of its divisors is an integer number (928169968362).

Almost surely, 2^{22002222002220} is an apocalyptic number.

22002222002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002222002220 is an abundant number, since it is smaller than the sum of its proper divisors (44826015719844).

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

22002222002220 is a wasteful number, since it uses less digits than its factorization.

22002222002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161473119 (or 161473114 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22002222002220 its reverse (2220022220022), we get a palindrome (24222244222242).

The spelling of 22002222002220 in words is "twenty-two trillion, two billion, two hundred twenty-two million, two thousand, two hundred twenty".