21302021211232 has 48 divisors (see below), whose sum is σ = 42926052254400. Its totient is φ = 10401176117248.

The previous prime is 21302021211209. The next prime is 21302021211281. The reversal of 21302021211232 is 23211212020312.

It is a super-2 number, since 2×21302021211232² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 15097063 + ... + 16447654.

It is an arithmetic number, because the mean of its divisors is an integer number (894292755300).

Almost surely, 2^{21302021211232} is an apocalyptic number.

It is an amenable number.

21302021211232 is an abundant number, since it is smaller than the sum of its proper divisors (21624031043168).

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

21302021211232 is a wasteful number, since it uses less digits than its factorization.

21302021211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31545223 (or 31545215 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21302021211232 its reverse (23211212020312), we get a palindrome (44513233231544).

The spelling of 21302021211232 in words is "twenty-one trillion, three hundred two billion, twenty-one million, two hundred eleven thousand, two hundred thirty-two".