20221220221120 has 56 divisors (see below), whose sum is σ = 50686084911600. Its totient is φ = 7662778186752.

The previous prime is 20221220221091. The next prime is 20221220221127. The reversal of 20221220221120 is 2112202212202.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20221220221127) 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, 1662923215 + ... + 1662935374.

Almost surely, 2^{20221220221120} is an apocalyptic number.

20221220221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221220221120 is an abundant number, since it is smaller than the sum of its proper divisors (30464864690480).

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

20221220221120 is a wasteful number, since it uses less digits than its factorization.

20221220221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325858625 (or 3325858615 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20221220221120 its reverse (2112202212202), we get a palindrome (22333422433322).

The spelling of 20221220221120 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty".