21022032130 has 64 divisors (see below), whose sum is σ = 41972764032. Its totient is φ = 7517079040.

The previous prime is 21022032127. The next prime is 21022032137. The reversal of 21022032130 is 3123022012.

It is not an unprimeable number, because it can be changed into a prime (21022032137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1605972 + ... + 1619008.

It is an arithmetic number, because the mean of its divisors is an integer number (655824438).

Almost surely, 2^21022032130 is an apocalyptic number.

21022032130 is a deficient number, since it is larger than the sum of its proper divisors (20950731902).

21022032130 is a wasteful number, since it uses less digits than its factorization.

21022032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13299.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21022032130 its reverse (3123022012), we get a palindrome (24145054142).

The spelling of 21022032130 in words is "twenty-one billion, twenty-two million, thirty-two thousand, one hundred thirty".