120121222122 has 48 divisors (see below), whose sum is σ = 284395587840. Its totient is φ = 36339768000.

The previous prime is 120121222093. The next prime is 120121222139. The reversal of 120121222122 is 221222121021.

It is a happy number.

120121222122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 120121222095 and 120121222104.

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 23 ways as a sum of consecutive naturals, for example, 385722 + ... + 623717.

It is an arithmetic number, because the mean of its divisors is an integer number (5924908080).

Almost surely, 2^120121222122 is an apocalyptic number.

120121222122 is an abundant number, since it is smaller than the sum of its proper divisors (164274365718).

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

120121222122 is a wasteful number, since it uses less digits than its factorization.

120121222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010059 (or 1010056 counting only the distinct ones).

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

Adding to 120121222122 its reverse (221222121021), we get a palindrome (341343343143).

It can be divided in two parts, 120121 and 222122, that added together give a palindrome (342243).

The spelling of 120121222122 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".