222222102102 has 320 divisors, whose sum is σ = 678017184768. Its totient is φ = 52526880000.

The previous prime is 222222102061. The next prime is 222222102119. The reversal of 222222102102 is 201201222222.

222222102102 is a `hidden beast` number, since 22 + 222 + 210 + 210 + 2 = 666.

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 polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11503852 + ... + 11523152.

Almost surely, 2^222222102102 is an apocalyptic number.

222222102102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222102102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339008592384).

222222102102 is an abundant number, since it is smaller than the sum of its proper divisors (455795082666).

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

222222102102 is a wasteful number, since it uses less digits than its factorization.

222222102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19417 (or 19408 counting only the distinct ones).

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

Adding to 222222102102 its reverse (201201222222), we get a palindrome (423423324324).

The spelling of 222222102102 in words is "two hundred twenty-two billion, two hundred twenty-two million, one hundred two thousand, one hundred two".