22111222102 has 4 divisors (see below), whose sum is σ = 33166833156. Its totient is φ = 11055611050.

The previous prime is 22111222093. The next prime is 22111222103. The reversal of 22111222102 is 20122211122.

It is a happy number.

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

It is a super-2 number, since 2×22111222102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5527805524 + ... + 5527805527.

It is an arithmetic number, because the mean of its divisors is an integer number (8291708289).

Almost surely, 2^22111222102 is an apocalyptic number.

22111222102 is a deficient number, since it is larger than the sum of its proper divisors (11055611054).

22111222102 is a wasteful number, since it uses less digits than its factorization.

22111222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11055611053.

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

Adding to 22111222102 its reverse (20122211122), we get a palindrome (42233433224).

The spelling of 22111222102 in words is "twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred two".