122222112102 has 96 divisors (see below), whose sum is σ = 297380341440. Its totient is φ = 36075663360.

The previous prime is 122222112083. The next prime is 122222112109. The reversal of 122222112102 is 201211222221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222112109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286974 + ... + 571662.

It is an arithmetic number, because the mean of its divisors is an integer number (3097711890).

Almost surely, 2^122222112102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122222112102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148690170720).

122222112102 is an abundant number, since it is smaller than the sum of its proper divisors (175158229338).

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

122222112102 is a wasteful number, since it uses less digits than its factorization.

122222112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284798 (or 284795 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122222112102 its reverse (201211222221), we get a palindrome (323433334323).

The spelling of 122222112102 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, one hundred two".