22221122102 has 4 divisors (see below), whose sum is σ = 33331683156. Its totient is φ = 11110561050.

The previous prime is 22221122087. The next prime is 22221122107. The reversal of 22221122102 is 20122112222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221122107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555280524 + ... + 5555280527.

It is an arithmetic number, because the mean of its divisors is an integer number (8332920789).

Almost surely, 2^22221122102 is an apocalyptic number.

22221122102 is a deficient number, since it is larger than the sum of its proper divisors (11110561054).

22221122102 is a wasteful number, since it uses less digits than its factorization.

22221122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110561053.

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

Adding to 22221122102 its reverse (20122112222), we get a palindrome (42343234324).

The spelling of 22221122102 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred two".