21020330022 has 32 divisors (see below), whose sum is σ = 43818178560. Its totient is φ = 6714912960.

The previous prime is 21020330003. The next prime is 21020330041. The reversal of 21020330022 is 22003302012.

It is an interprime number because it is at equal distance from previous prime (21020330003) and next prime (21020330041).

It is a junction number, because it is equal to n+sod(n) for n = 21020329983 and 21020330010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529447 + ... + 567762.

It is an arithmetic number, because the mean of its divisors is an integer number (1369318080).

Almost surely, 2^21020330022 is an apocalyptic number.

21020330022 is an abundant number, since it is smaller than the sum of its proper divisors (22797848538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21020330022 is a wasteful number, since it uses less digits than its factorization.

21020330022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097348.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21020330022 its reverse (22003302012), we get a palindrome (43023632034).

The spelling of 21020330022 in words is "twenty-one billion, twenty million, three hundred thirty thousand, twenty-two".