21220212001303 has 12 divisors (see below), whose sum is σ = 25053165315192. Its totient is φ = 17917279213680.

The previous prime is 21220212001283. The next prime is 21220212001337. The reversal of 21220212001303 is 30310021202212.

It is not a de Polignac number, because 21220212001303 - 2¹³ = 21220211993111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220212001393) 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 11 ways as a sum of consecutive naturals, for example, 3231829188 + ... + 3231835753.

It is an arithmetic number, because the mean of its divisors is an integer number (2087763776266).

Almost surely, 2^{21220212001303} is an apocalyptic number.

21220212001303 is a deficient number, since it is larger than the sum of its proper divisors (3832953313889).

21220212001303 is an equidigital number, since it uses as much as digits as its factorization.

21220212001303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463665022 (or 6463665015 counting only the distinct ones).

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

Adding to 21220212001303 its reverse (30310021202212), we get a palindrome (51530233203515).

The spelling of 21220212001303 in words is "twenty-one trillion, two hundred twenty billion, two hundred twelve million, one thousand, three hundred three".