221434315300 has 72 divisors (see below), whose sum is σ = 524311254432. Its totient is φ = 80503776000.

The previous prime is 221434315261. The next prime is 221434315307. The reversal of 221434315300 is 3513434122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221434315307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5604615 + ... + 5643985.

It is an arithmetic number, because the mean of its divisors is an integer number (7282100756).

Almost surely, 2^221434315300 is an apocalyptic number.

221434315300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221434315300 is an abundant number, since it is smaller than the sum of its proper divisors (302876939132).

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

221434315300 is a wasteful number, since it uses less digits than its factorization.

221434315300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44509 (or 44502 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 221434315300 its reverse (3513434122), we get a palindrome (224947749422).

The spelling of 221434315300 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred fifteen thousand, three hundred".