22221320130 has 48 divisors (see below), whose sum is σ = 57845319480. Its totient is φ = 5918517504.

The previous prime is 22221320117. The next prime is 22221320131. The reversal of 22221320130 is 3102312222.

22221320130 is a `hidden beast` number, since 222 + 213 + 201 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11386383849 + 10834936281 = 106707^2 + 104091^2 .

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 (22221320131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74307 + ... + 223526.

Almost surely, 2^22221320130 is an apocalyptic number.

22221320130 is an abundant number, since it is smaller than the sum of its proper divisors (35623999350).

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

22221320130 is a wasteful number, since it uses less digits than its factorization.

22221320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298675 (or 298672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22221320130 its reverse (3102312222), we get a palindrome (25323632352).

The spelling of 22221320130 in words is "twenty-two billion, two hundred twenty-one million, three hundred twenty thousand, one hundred thirty".