221214422234 has 32 divisors (see below), whose sum is σ = 377072962560. Its totient is φ = 96562553472.

The previous prime is 221214422183. The next prime is 221214422239. The reversal of 221214422234 is 432224412122.

It is a junction number, because it is equal to n+sod(n) for n = 221214422197 and 221214422206.

It is not an unprimeable number, because it can be changed into a prime (221214422239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2025002 + ... + 2131445.

It is an arithmetic number, because the mean of its divisors is an integer number (11783530080).

Almost surely, 2^221214422234 is an apocalyptic number.

221214422234 is a deficient number, since it is larger than the sum of its proper divisors (155858540326).

221214422234 is a wasteful number, since it uses less digits than its factorization.

221214422234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156574.

The product of its digits is 12288, while the sum is 29.

Adding to 221214422234 its reverse (432224412122), we get a palindrome (653438834356).

The spelling of 221214422234 in words is "two hundred twenty-one billion, two hundred fourteen million, four hundred twenty-two thousand, two hundred thirty-four".