22222221102 has 64 divisors (see below), whose sum is σ = 51621273600. Its totient is φ = 7077676320.

The previous prime is 22222221083. The next prime is 22222221139. The reversal of 22222221102 is 20112222222.

It is a super-2 number, since 2×22222221102² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 48228 + ... + 216264.

It is an arithmetic number, because the mean of its divisors is an integer number (806582400).

Almost surely, 2^22222221102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22222221102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25810636800).

22222221102 is an abundant number, since it is smaller than the sum of its proper divisors (29399052498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222221102 is a wasteful number, since it uses less digits than its factorization.

22222221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168158 (or 168152 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22222221102 its reverse (20112222222), we get a palindrome (42334443324).

The spelling of 22222221102 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred two".