222121112111102 has 8 divisors (see below), whose sum is σ = 337874367718512. Its totient is φ = 109496322871600.

The previous prime is 222121112111083. The next prime is 222121112111147. The reversal of 222121112111102 is 201111211121222.

It is a happy number.

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

It is a congruent 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, 782116591799 + ... + 782116592082.

It is an arithmetic number, because the mean of its divisors is an integer number (42234295964814).

Almost surely, 2^{222121112111102} is an apocalyptic number.

222121112111102 is a deficient number, since it is larger than the sum of its proper divisors (115753255607410).

222121112111102 is a wasteful number, since it uses less digits than its factorization.

222121112111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564233183954.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 222121112111102 its reverse (201111211121222), we get a palindrome (423232323232324).

The spelling of 222121112111102 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, one hundred two".