21032221130 has 16 divisors (see below), whose sum is σ = 37861024104. Its totient is φ = 8412216000.

The previous prime is 21032221117. The next prime is 21032221151. The reversal of 21032221130 is 3112223012.

It can be written as a sum of positive squares in 4 ways, for example, as 14665936609 + 6366284521 = 121103^2 + 79789^2 .

It is a super-2 number, since 2×21032221130² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21032221099 and 21032221108.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58880 + ... + 213380.

Almost surely, 2^21032221130 is an apocalyptic number.

21032221130 is a deficient number, since it is larger than the sum of its proper divisors (16828802974).

21032221130 is a wasteful number, since it uses less digits than its factorization.

21032221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168121.

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

Adding to 21032221130 its reverse (3112223012), we get a palindrome (24144444142).

The spelling of 21032221130 in words is "twenty-one billion, thirty-two million, two hundred twenty-one thousand, one hundred thirty".