20221221120303 has 48 divisors (see below), whose sum is σ = 32639310305280. Its totient is φ = 11089729796544.

The previous prime is 20221221120263. The next prime is 20221221120323. The reversal of 20221221120303 is 30302112212202.

It is not a de Polignac number, because 20221221120303 - 2⁶ = 20221221120239 is a prime.

It is a super-2 number, since 2×20221221120303² (a number of 27 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20221221120303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221221120323) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13489951 + ... + 14913792.

It is an arithmetic number, because the mean of its divisors is an integer number (679985631360).

Almost surely, 2^{20221221120303} is an apocalyptic number.

20221221120303 is a deficient number, since it is larger than the sum of its proper divisors (12418089184977).

20221221120303 is a wasteful number, since it uses less digits than its factorization.

20221221120303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28403956 (or 28403949 counting only the distinct ones).

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

Adding to 20221221120303 its reverse (30302112212202), we get a palindrome (50523333332505).

The spelling of 20221221120303 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, three hundred three".