22012055530 has 16 divisors (see below), whose sum is σ = 39786109704. Its totient is φ = 8768286720.

The previous prime is 22012055501. The next prime is 22012055543. The reversal of 22012055530 is 3555021022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20560978881 + 1451076649 = 143391^2 + 38093^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22012055495 and 22012055504.

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, 4564407 + ... + 4569226.

Almost surely, 2^22012055530 is an apocalyptic number.

22012055530 is a deficient number, since it is larger than the sum of its proper divisors (17774054174).

22012055530 is a wasteful number, since it uses less digits than its factorization.

22012055530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133881.

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 22012055530 its reverse (3555021022), we get a palindrome (25567076552).

The spelling of 22012055530 in words is "twenty-two billion, twelve million, fifty-five thousand, five hundred thirty".