222221006642 has 32 divisors (see below), whose sum is σ = 341707296000. Its totient is φ = 108352080000.

The previous prime is 222221006611. The next prime is 222221006669. The reversal of 222221006642 is 246600122222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12726734 + ... + 12744182.

It is an arithmetic number, because the mean of its divisors is an integer number (10678353000).

Almost surely, 2^222221006642 is an apocalyptic number.

222221006642 is a deficient number, since it is larger than the sum of its proper divisors (119486289358).

222221006642 is a wasteful number, since it uses less digits than its factorization.

222221006642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18402.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 222221006642 its reverse (246600122222), we get a palindrome (468821128864).

The spelling of 222221006642 in words is "two hundred twenty-two billion, two hundred twenty-one million, six thousand, six hundred forty-two".