22221312130 has 8 divisors (see below), whose sum is σ = 39998361852. Its totient is φ = 8888524848.

The previous prime is 22221312109. The next prime is 22221312133. The reversal of 22221312130 is 3121312222.

It can be written as a sum of positive squares in 2 ways, for example, as 20215436761 + 2005875369 = 142181^2 + 44787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22221312098 and 22221312107.

It is not an unprimeable number, because it can be changed into a prime (22221312133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111065597 + ... + 1111065616.

Almost surely, 2^22221312130 is an apocalyptic number.

22221312130 is a deficient number, since it is larger than the sum of its proper divisors (17777049722).

22221312130 is a wasteful number, since it uses less digits than its factorization.

22221312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222131220.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22221312130 its reverse (3121312222), we get a palindrome (25342624352).

The spelling of 22221312130 in words is "twenty-two billion, two hundred twenty-one million, three hundred twelve thousand, one hundred thirty".