120121120002222 has 24 divisors (see below), whose sum is σ = 260276808900576. Its totient is φ = 40038160683456.

The previous prime is 120121120002209. The next prime is 120121120002239. The reversal of 120121120002222 is 222200021121021.

It is a happy number.

120121120002222 is a `hidden beast` number, since 120 + 121 + 1 + 200 + 0 + 2 + 222 = 666.

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 = 120121120002195 and 120121120002204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184052758 + ... + 184704249.

It is an arithmetic number, because the mean of its divisors is an integer number (10844867037524).

Almost surely, 2^{120121120002222} is an apocalyptic number.

120121120002222 is an abundant number, since it is smaller than the sum of its proper divisors (140155688898354).

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

120121120002222 is a wasteful number, since it uses less digits than its factorization.

120121120002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368775112 (or 368775109 counting only the distinct ones).

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

Adding to 120121120002222 its reverse (222200021121021), we get a palindrome (342321141123243).

The spelling of 120121120002222 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred twenty million, two thousand, two hundred twenty-two".