221213340232 has 16 divisors (see below), whose sum is σ = 421805098800. Its totient is φ = 108731980560.

The previous prime is 221213340197. The next prime is 221213340233. The reversal of 221213340232 is 232043312122.

It is a junction number, because it is equal to n+sod(n) for n = 221213340197 and 221213340206.

It is not an unprimeable number, because it can be changed into a prime (221213340233) 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 3 ways as a sum of consecutive naturals, for example, 234335694 + ... + 234336637.

It is an arithmetic number, because the mean of its divisors is an integer number (26362818675).

Almost surely, 2^221213340232 is an apocalyptic number.

It is an amenable number.

221213340232 is a deficient number, since it is larger than the sum of its proper divisors (200591758568).

221213340232 is a wasteful number, since it uses less digits than its factorization.

221213340232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468672396 (or 468672392 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 221213340232 its reverse (232043312122), we get a palindrome (453256652354).

The spelling of 221213340232 in words is "two hundred twenty-one billion, two hundred thirteen million, three hundred forty thousand, two hundred thirty-two".