221314403244 has 48 divisors (see below), whose sum is σ = 563501869056. Its totient is φ = 67046385600.

The previous prime is 221314403239. The next prime is 221314403249. The reversal of 221314403244 is 442304413122.

It is an interprime number because it is at equal distance from previous prime (221314403239) and next prime (221314403249).

It is not an unprimeable number, because it can be changed into a prime (221314403249) 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, 249589 + ... + 710579.

It is an arithmetic number, because the mean of its divisors is an integer number (11739622272).

Almost surely, 2^221314403244 is an apocalyptic number.

It is an amenable number.

221314403244 is an abundant number, since it is smaller than the sum of its proper divisors (342187465812).

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

221314403244 is a wasteful number, since it uses less digits than its factorization.

221314403244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464646 (or 464644 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 221314403244 its reverse (442304413122), we get a palindrome (663618816366).

The spelling of 221314403244 in words is "two hundred twenty-one billion, three hundred fourteen million, four hundred three thousand, two hundred forty-four".