20301224101220 has 96 divisors (see below), whose sum is σ = 43480922591232. Its totient is φ = 7960252160000.

The previous prime is 20301224101217. The next prime is 20301224101229. The reversal of 20301224101220 is 2210142210302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20301224101192 and 20301224101201.

It is not an unprimeable number, because it can be changed into a prime (20301224101229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580664540 + ... + 580699500.

It is an arithmetic number, because the mean of its divisors is an integer number (452926276992).

Almost surely, 2^{20301224101220} is an apocalyptic number.

20301224101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20301224101220 is an abundant number, since it is smaller than the sum of its proper divisors (23179698490012).

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

20301224101220 is a wasteful number, since it uses less digits than its factorization.

20301224101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37373 (or 37371 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20301224101220 its reverse (2210142210302), we get a palindrome (22511366311522).

The spelling of 20301224101220 in words is "twenty trillion, three hundred one billion, two hundred twenty-four million, one hundred one thousand, two hundred twenty".