21202123300232 has 128 divisors (see below), whose sum is σ = 50211868032000. Its totient is φ = 8187486531840.

The previous prime is 21202123300217. The next prime is 21202123300247. The reversal of 21202123300232 is 23200332120212.

It is an interprime number because it is at equal distance from previous prime (21202123300217) and next prime (21202123300247).

It is a super-2 number, since 2×21202123300232² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21202123300198 and 21202123300207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3060494 + ... + 7195197.

It is an arithmetic number, because the mean of its divisors is an integer number (392280219000).

Almost surely, 2^{21202123300232} is an apocalyptic number.

It is an amenable number.

21202123300232 is an abundant number, since it is smaller than the sum of its proper divisors (29009744731768).

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

21202123300232 is a wasteful number, since it uses less digits than its factorization.

21202123300232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10255819 (or 10255815 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21202123300232 its reverse (23200332120212), we get a palindrome (44402455420444).

The spelling of 21202123300232 in words is "twenty-one trillion, two hundred two billion, one hundred twenty-three million, three hundred thousand, two hundred thirty-two".