221211134230 has 16 divisors (see below), whose sum is σ = 403634564064. Its totient is φ = 87272337600.

The previous prime is 221211134213. The next prime is 221211134231. The reversal of 221211134230 is 32431112122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211134231) 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, 151513746 + ... + 151515205.

It is an arithmetic number, because the mean of its divisors is an integer number (25227160254).

Almost surely, 2^221211134230 is an apocalyptic number.

221211134230 is a deficient number, since it is larger than the sum of its proper divisors (182423429834).

221211134230 is a wasteful number, since it uses less digits than its factorization.

221211134230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303029031.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221211134230 its reverse (32431112122), we get a palindrome (253642246352).

The spelling of 221211134230 in words is "two hundred twenty-one billion, two hundred eleven million, one hundred thirty-four thousand, two hundred thirty".