221132212330 has 64 divisors (see below), whose sum is σ = 405676252800. Its totient is φ = 86775840000.

The previous prime is 221132212309. The next prime is 221132212339. The reversal of 221132212330 is 33212231122.

It is not an unprimeable number, because it can be changed into a prime (221132212339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48608896 + ... + 48613444.

It is an arithmetic number, because the mean of its divisors is an integer number (6338691450).

Almost surely, 2^221132212330 is an apocalyptic number.

221132212330 is a deficient number, since it is larger than the sum of its proper divisors (184544040470).

221132212330 is a wasteful number, since it uses less digits than its factorization.

221132212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221132212330 its reverse (33212231122), we get a palindrome (254344443452).

The spelling of 221132212330 in words is "two hundred twenty-one billion, one hundred thirty-two million, two hundred twelve thousand, three hundred thirty".