20221330101220 has 12 divisors (see below), whose sum is σ = 42464793212604. Its totient is φ = 8088532040480.

The previous prime is 20221330101173. The next prime is 20221330101223. The reversal of 20221330101220 is 2210103312202.

It can be written as a sum of positive squares in 2 ways, for example, as 4739607660096 + 15481722441124 = 2177064^2 + 3934682^2 .

It is not an unprimeable number, because it can be changed into a prime (20221330101223) 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 3 ways as a sum of consecutive naturals, for example, 505533252511 + ... + 505533252550.

It is an arithmetic number, because the mean of its divisors is an integer number (3538732767717).

Almost surely, 2^{20221330101220} is an apocalyptic number.

20221330101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221330101220 is an abundant number, since it is smaller than the sum of its proper divisors (22243463111384).

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

20221330101220 is a wasteful number, since it uses less digits than its factorization.

20221330101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011066505070 (or 1011066505068 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20221330101220 its reverse (2210103312202), we get a palindrome (22431433413422).

The spelling of 20221330101220 in words is "twenty trillion, two hundred twenty-one billion, three hundred thirty million, one hundred one thousand, two hundred twenty".