22021231130 has 16 divisors (see below), whose sum is σ = 39649473864. Its totient is φ = 8805990720.

The previous prime is 22021231117. The next prime is 22021231153. The reversal of 22021231130 is 3113212022.

It can be written as a sum of positive squares in 4 ways, for example, as 15084506761 + 6936724369 = 122819^2 + 83287^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22021231099 and 22021231108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275537 + ... + 346356.

Almost surely, 2^22021231130 is an apocalyptic number.

22021231130 is a deficient number, since it is larger than the sum of its proper divisors (17628242734).

22021231130 is a wasteful number, since it uses less digits than its factorization.

22021231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625441.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22021231130 its reverse (3113212022), we get a palindrome (25134443152).

The spelling of 22021231130 in words is "twenty-two billion, twenty-one million, two hundred thirty-one thousand, one hundred thirty".