221303420013 has 32 divisors (see below), whose sum is σ = 319981742080. Its totient is φ = 135239025600.

The previous prime is 221303420011. The next prime is 221303420017. The reversal of 221303420013 is 310024303122.

It is not a de Polignac number, because 221303420013 - 2¹ = 221303420011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221303420011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27456378 + ... + 27464436.

It is an arithmetic number, because the mean of its divisors is an integer number (9999429440).

Almost surely, 2^221303420013 is an apocalyptic number.

It is an amenable number.

221303420013 is a deficient number, since it is larger than the sum of its proper divisors (98678322067).

221303420013 is a wasteful number, since it uses less digits than its factorization.

221303420013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12889.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221303420013 its reverse (310024303122), we get a palindrome (531327723135).

The spelling of 221303420013 in words is "two hundred twenty-one billion, three hundred three million, four hundred twenty thousand, thirteen".