221224133431122 has 8 divisors (see below), whose sum is σ = 442448266862256. Its totient is φ = 73741377810372.

The previous prime is 221224133431097. The next prime is 221224133431127. The reversal of 221224133431122 is 221134331422122.

221224133431122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

221224133431122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (221224133431127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18435344452588 + ... + 18435344452599.

It is an arithmetic number, because the mean of its divisors is an integer number (55306033357782).

Almost surely, 2^{221224133431122} is an apocalyptic number.

221224133431122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221224133431122 is a wasteful number, since it uses less digits than its factorization.

221224133431122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36870688905192.

The product of its digits is 27648, while the sum is 33.

Adding to 221224133431122 its reverse (221134331422122), we get a palindrome (442358464853244).

The spelling of 221224133431122 in words is "two hundred twenty-one trillion, two hundred twenty-four billion, one hundred thirty-three million, four hundred thirty-one thousand, one hundred twenty-two".