221423314360 has 32 divisors (see below), whose sum is σ = 514273507200. Its totient is φ = 85712250240.

The previous prime is 221423314319. The next prime is 221423314361. The reversal of 221423314360 is 63413324122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221423314361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89282355 + ... + 89284834.

It is an arithmetic number, because the mean of its divisors is an integer number (16071047100).

Almost surely, 2^221423314360 is an apocalyptic number.

221423314360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221423314360 is an abundant number, since it is smaller than the sum of its proper divisors (292850192840).

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

221423314360 is a wasteful number, since it uses less digits than its factorization.

221423314360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178567231 (or 178567227 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 221423314360 its reverse (63413324122), we get a palindrome (284836638482).

The spelling of 221423314360 in words is "two hundred twenty-one billion, four hundred twenty-three million, three hundred fourteen thousand, three hundred sixty".