111210022222002 has 128 divisors (see below), whose sum is σ = 271332979441920. Its totient is φ = 33483415979520.

The previous prime is 111210022222001. The next prime is 111210022222043. The reversal of 111210022222002 is 200222220012111.

It is a happy number.

111210022222002 is a `hidden beast` number, since 1 + 11 + 210 + 0 + 222 + 220 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (111210022222001) 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, 3088034148 + ... + 3088070160.

It is an arithmetic number, because the mean of its divisors is an integer number (2119788901890).

Almost surely, 2^{111210022222002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111210022222002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135666489720960).

111210022222002 is an abundant number, since it is smaller than the sum of its proper divisors (160122957219918).

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

111210022222002 is a wasteful number, since it uses less digits than its factorization.

111210022222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69305 (or 69299 counting only the distinct ones).

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

Adding to 111210022222002 its reverse (200222220012111), we get a palindrome (311432242234113).

The spelling of 111210022222002 in words is "one hundred eleven trillion, two hundred ten billion, twenty-two million, two hundred twenty-two thousand, two".