101111111112222 has 96 divisors (see below), whose sum is σ = 234415707031584. Its totient is φ = 31385841408000.

The previous prime is 101111111112199. The next prime is 101111111112283. The reversal of 101111111112222 is 222211111111101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101111111112195 and 101111111112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44667273 + ... + 46876299.

It is an arithmetic number, because the mean of its divisors is an integer number (2441830281579).

Almost surely, 2^{101111111112222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101111111112222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117207853515792).

101111111112222 is an abundant number, since it is smaller than the sum of its proper divisors (133304595919362).

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

101111111112222 is a wasteful number, since it uses less digits than its factorization.

101111111112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210634 (or 2210631 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 101111111112222 its reverse (222211111111101), we get a palindrome (323322222223323).

The spelling of 101111111112222 in words is "one hundred one trillion, one hundred eleven billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty-two".