21220414303 has 16 divisors (see below), whose sum is σ = 23436915840. Its totient is φ = 19052906400.

The previous prime is 21220414249. The next prime is 21220414331. The reversal of 21220414303 is 30341402212.

It is not a de Polignac number, because 21220414303 - 2⁹ = 21220413791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220414343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362353 + ... + 416821.

It is an arithmetic number, because the mean of its divisors is an integer number (1464807240).

Almost surely, 2^21220414303 is an apocalyptic number.

21220414303 is a deficient number, since it is larger than the sum of its proper divisors (2216501537).

21220414303 is a wasteful number, since it uses less digits than its factorization.

21220414303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54918.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21220414303 its reverse (30341402212), we get a palindrome (51561816515).

The spelling of 21220414303 in words is "twenty-one billion, two hundred twenty million, four hundred fourteen thousand, three hundred three".