20000220222222 has 12 divisors (see below), whose sum is σ = 43333810481520. Its totient is φ = 6666740074068.

The previous prime is 20000220222139. The next prime is 20000220222251. The reversal of 20000220222222 is 22222202200002.

20000220222222 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 0 + 220 + 222 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1111123345679 = 20000220222222 / (2 + 0 + 0 + 0 + 0 + 2 + 2 + 0 + 2 + 2 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20000220222195 and 20000220222204.

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 5 ways as a sum of consecutive naturals, for example, 555561672822 + ... + 555561672857.

It is an arithmetic number, because the mean of its divisors is an integer number (3611150873460).

Almost surely, 2^{20000220222222} is an apocalyptic number.

20000220222222 is an abundant number, since it is smaller than the sum of its proper divisors (23333590259298).

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

20000220222222 is a wasteful number, since it uses less digits than its factorization.

20000220222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111123345687 (or 1111123345684 counting only the distinct ones).

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

Adding to 20000220222222 its reverse (22222202200002), we get a palindrome (42222422422224).

The spelling of 20000220222222 in words is "twenty trillion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".