221423421340330 has 64 divisors (see below), whose sum is σ = 458026028697600. Its totient is φ = 76222006413120.

The previous prime is 221423421340217. The next prime is 221423421340369. The reversal of 221423421340330 is 33043124324122.

221423421340330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37404102 + ... + 42917521.

It is an arithmetic number, because the mean of its divisors is an integer number (7156656698400).

Almost surely, 2^{221423421340330} is an apocalyptic number.

221423421340330 is an abundant number, since it is smaller than the sum of its proper divisors (236602607357270).

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

221423421340330 is a wasteful number, since it uses less digits than its factorization.

221423421340330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80322979.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 221423421340330 its reverse (33043124324122), we get a palindrome (254466545664452).

The spelling of 221423421340330 in words is "two hundred twenty-one trillion, four hundred twenty-three billion, four hundred twenty-one million, three hundred forty thousand, three hundred thirty".