20002222122222 has 32 divisors (see below), whose sum is σ = 41709765427200. Its totient is φ = 6386807816928.

The previous prime is 20002222122209. The next prime is 20002222122229. The reversal of 20002222122222 is 22222122220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002222122229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452557822 + ... + 452602017.

It is an arithmetic number, because the mean of its divisors is an integer number (1303430169600).

Almost surely, 2^{20002222122222} is an apocalyptic number.

20002222122222 is an abundant number, since it is smaller than the sum of its proper divisors (21707543304978).

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

20002222122222 is a wasteful number, since it uses less digits than its factorization.

20002222122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905160000.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20002222122222 its reverse (22222122220002), we get a palindrome (42224344342224).

The spelling of 20002222122222 in words is "twenty trillion, two billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".