221434021003234 has 16 divisors (see below), whose sum is σ = 357701423280768. Its totient is φ = 102200228120592.

The previous prime is 221434021003231. The next prime is 221434021003241. The reversal of 221434021003234 is 432300120434122.

It is a junction number, because it is equal to n+sod(n) for n = 221434021003196 and 221434021003205.

It is not an unprimeable number, because it can be changed into a prime (221434021003231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33738009 + ... + 39763315.

It is an arithmetic number, because the mean of its divisors is an integer number (22356338955048).

Almost surely, 2^{221434021003234} is an apocalyptic number.

221434021003234 is a deficient number, since it is larger than the sum of its proper divisors (136267402277534).

221434021003234 is a wasteful number, since it uses less digits than its factorization.

221434021003234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7438809.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 221434021003234 its reverse (432300120434122), we get a palindrome (653734141437356).

The spelling of 221434021003234 in words is "two hundred twenty-one trillion, four hundred thirty-four billion, twenty-one million, three thousand, two hundred thirty-four".