102222210121122 has 128 divisors (see below), whose sum is σ = 258691840856064. Its totient is φ = 26203931889408.

The previous prime is 102222210121103. The next prime is 102222210121123. The reversal of 102222210121122 is 221121012222201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (102222210121123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16918993 + ... + 22151675.

It is an arithmetic number, because the mean of its divisors is an integer number (2021030006688).

Almost surely, 2^{102222210121122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102222210121122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129345920428032).

102222210121122 is an abundant number, since it is smaller than the sum of its proper divisors (156469630734942).

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

102222210121122 is a wasteful number, since it uses less digits than its factorization.

102222210121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233712.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102222210121122 its reverse (221121012222201), we get a palindrome (323343222343323).

The spelling of 102222210121122 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand, one hundred twenty-two".