20103221330220 has 96 divisors (see below), whose sum is σ = 64333559808000. Its totient is φ = 4594789764864.

The previous prime is 20103221330219. The next prime is 20103221330233. The reversal of 20103221330220 is 2203312230102.

It is a happy number.

It is a super-3 number, since 3×20103221330220³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7178901 + ... + 9578259.

It is an arithmetic number, because the mean of its divisors is an integer number (670141248000).

Almost surely, 2^{20103221330220} is an apocalyptic number.

20103221330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103221330220 is an abundant number, since it is smaller than the sum of its proper divisors (44230338477780).

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

20103221330220 is a wasteful number, since it uses less digits than its factorization.

20103221330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419327 (or 2419325 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20103221330220 its reverse (2203312230102), we get a palindrome (22306533560322).

The spelling of 20103221330220 in words is "twenty trillion, one hundred three billion, two hundred twenty-one million, three hundred thirty thousand, two hundred twenty".