22220222130 has 80 divisors (see below), whose sum is σ = 63262318680. Its totient is φ = 5576836608.

The previous prime is 22220222041. The next prime is 22220222131. The reversal of 22220222130 is 3122202222.

It can be written as a sum of positive squares in 4 ways, for example, as 22188783681 + 31438449 = 148959^2 + 5607^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22220222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 793065 + ... + 820604.

Almost surely, 2^22220222130 is an apocalyptic number.

22220222130 is an abundant number, since it is smaller than the sum of its proper divisors (41042096550).

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

22220222130 is a wasteful number, since it uses less digits than its factorization.

22220222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613705 (or 1613696 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22220222130 its reverse (3122202222), we get a palindrome (25342424352).

The spelling of 22220222130 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred thirty".