22221112102 has 8 divisors (see below), whose sum is σ = 38093335056. Its totient is φ = 9523333752.

The previous prime is 22221112099. The next prime is 22221112103. The reversal of 22221112102 is 20121112222.

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 not an unprimeable number, because it can be changed into a prime (22221112103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793611133 + ... + 793611160.

It is an arithmetic number, because the mean of its divisors is an integer number (4761666882).

Almost surely, 2^22221112102 is an apocalyptic number.

22221112102 is a deficient number, since it is larger than the sum of its proper divisors (15872222954).

22221112102 is a wasteful number, since it uses less digits than its factorization.

22221112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587222302.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22221112102 its reverse (20121112222), we get a palindrome (42342224324).

The spelling of 22221112102 in words is "twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred two".