221134312014 has 128 divisors (see below), whose sum is σ = 564378845184. Its totient is φ = 56090928000.

The previous prime is 221134311989. The next prime is 221134312027. The reversal of 221134312014 is 410213431122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9999109 + ... + 10021199.

It is an arithmetic number, because the mean of its divisors is an integer number (4409209728).

Almost surely, 2^221134312014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221134312014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282189422592).

221134312014 is an abundant number, since it is smaller than the sum of its proper divisors (343244533170).

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

221134312014 is a wasteful number, since it uses less digits than its factorization.

221134312014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22622.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 221134312014 its reverse (410213431122), we get a palindrome (631347743136).

The spelling of 221134312014 in words is "two hundred twenty-one billion, one hundred thirty-four million, three hundred twelve thousand, fourteen".