20002242222 has 56 divisors (see below), whose sum is σ = 45017732016. Its totient is φ = 6662484576.

The previous prime is 20002242199. The next prime is 20002242223. The reversal of 20002242222 is 22224220002.

It is a happy number.

20002242222 is a `hidden beast` number, since 200 + 0 + 2 + 242 + 222 = 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 = 20002242195 and 20002242204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002242223) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2338738 + ... + 2347274.

Almost surely, 2^20002242222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002242222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22508866008).

20002242222 is an abundant number, since it is smaller than the sum of its proper divisors (25015489794).

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

20002242222 is an equidigital number, since it uses as much as digits as its factorization.

20002242222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164 (or 10149 counting only the distinct ones).

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

Adding to 20002242222 its reverse (22224220002), we get a palindrome (42226462224).

The spelling of 20002242222 in words is "twenty billion, two million, two hundred forty-two thousand, two hundred twenty-two".