21030220020132 has 72 divisors (see below), whose sum is σ = 53387471303712. Its totient is φ = 6980057280000.

The previous prime is 21030220020101. The next prime is 21030220020137. The reversal of 21030220020132 is 23102002203012.

21030220020132 is a `hidden beast` number, since 2 + 10 + 302 + 200 + 20 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21030220020137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30023763 + ... + 30716229.

It is an arithmetic number, because the mean of its divisors is an integer number (741492656996).

Almost surely, 2^{21030220020132} is an apocalyptic number.

It is an amenable number.

21030220020132 is an abundant number, since it is smaller than the sum of its proper divisors (32357251283580).

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

21030220020132 is a wasteful number, since it uses less digits than its factorization.

21030220020132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696089 (or 696084 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21030220020132 its reverse (23102002203012), we get a palindrome (44132222223144).

The spelling of 21030220020132 in words is "twenty-one trillion, thirty billion, two hundred twenty million, twenty thousand, one hundred thirty-two".