21323301101220 has 96 divisors (see below), whose sum is σ = 61632373985280. Its totient is φ = 5502684228480.

The previous prime is 21323301101203. The next prime is 21323301101257. The reversal of 21323301101220 is 2210110332312.

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, 183001099 + ... + 183117581.

It is an arithmetic number, because the mean of its divisors is an integer number (642003895680).

Almost surely, 2^{21323301101220} is an apocalyptic number.

21323301101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21323301101220 is an abundant number, since it is smaller than the sum of its proper divisors (40309072884060).

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

21323301101220 is a wasteful number, since it uses less digits than its factorization.

21323301101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214945 (or 214943 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21323301101220 its reverse (2210110332312), we get a palindrome (23533411433532).

The spelling of 21323301101220 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred one million, one hundred one thousand, two hundred twenty".