222121102 has 8 divisors (see below), whose sum is σ = 380779056. Its totient is φ = 95194752.

The previous prime is 222121093. The next prime is 222121117. The reversal of 222121102 is 201121222.

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, 7932883 + ... + 7932910.

It is an arithmetic number, because the mean of its divisors is an integer number (47597382).

Almost surely, 2^222121102 is an apocalyptic number.

222121102 is a deficient number, since it is larger than the sum of its proper divisors (158657954).

222121102 is a wasteful number, since it uses less digits than its factorization.

222121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15865802.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 222121102 is about 14903.7277887111. The cubic root of 222121102 is about 605.6149765193.

Adding to 222121102 its reverse (201121222), we get a palindrome (423242324).

The spelling of 222121102 in words is "two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".