23110320221220 has 24 divisors (see below), whose sum is σ = 64708896619584. Its totient is φ = 6162752058976.

The previous prime is 23110320221089. The next prime is 23110320221221. The reversal of 23110320221220 is 2212202301132.

It is not an unprimeable number, because it can be changed into a prime (23110320221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192586001784 + ... + 192586001903.

It is an arithmetic number, because the mean of its divisors is an integer number (2696204025816).

Almost surely, 2^{23110320221220} is an apocalyptic number.

23110320221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23110320221220 is an abundant number, since it is smaller than the sum of its proper divisors (41598576398364).

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

23110320221220 is a wasteful number, since it uses less digits than its factorization.

23110320221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385172003699 (or 385172003697 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23110320221220 its reverse (2212202301132), we get a palindrome (25322522522352).

The spelling of 23110320221220 in words is "twenty-three trillion, one hundred ten billion, three hundred twenty million, two hundred twenty-one thousand, two hundred twenty".