21302021211120 has 160 divisors (see below), whose sum is σ = 79017753998400. Its totient is φ = 5243574445056.

The previous prime is 21302021211061. The next prime is 21302021211137. The reversal of 21302021211120 is 2111212020312.

21302021211120 is a `hidden beast` number, since 2 + 130 + 202 + 1 + 211 + 120 = 666.

It is a super-2 number, since 2×21302021211120² (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 21302021211093 and 21302021211102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379281415 + ... + 379337574.

It is an arithmetic number, because the mean of its divisors is an integer number (493860962490).

Almost surely, 2^{21302021211120} is an apocalyptic number.

21302021211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21302021211120 is an abundant number, since it is smaller than the sum of its proper divisors (57715732787280).

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

21302021211120 is a wasteful number, since it uses less digits than its factorization.

21302021211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758619024 (or 758619012 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21302021211120 its reverse (2111212020312), we get a palindrome (23413233231432).

The spelling of 21302021211120 in words is "twenty-one trillion, three hundred two billion, twenty-one million, two hundred eleven thousand, one hundred twenty".