222221012200010 has 8 divisors (see below), whose sum is σ = 399997821960036. Its totient is φ = 88888404880000.

The previous prime is 222221012199961. The next prime is 222221012200067. The reversal of 222221012200010 is 10002210122222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 218670836475529 + 3550175724481 = 14787523^2 + 1884191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11111050609991 + ... + 11111050610010.

Almost surely, 2^{222221012200010} is an apocalyptic number.

222221012200010 is a deficient number, since it is larger than the sum of its proper divisors (177776809760026).

222221012200010 is a wasteful number, since it uses less digits than its factorization.

222221012200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22222101220008.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222221012200010 its reverse (10002210122222), we get a palindrome (232223222322232).

The spelling of 222221012200010 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twelve million, two hundred thousand, ten".