121120122222 has 24 divisors (see below), whose sum is σ = 286283925720. Its totient is φ = 36703067280.

The previous prime is 121120122217. The next prime is 121120122259. The reversal of 121120122222 is 222221021121.

It is a happy number.

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 = 121120122195 and 121120122204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305858697 + ... + 305859092.

It is an arithmetic number, because the mean of its divisors is an integer number (11928496905).

Almost surely, 2^121120122222 is an apocalyptic number.

121120122222 is an abundant number, since it is smaller than the sum of its proper divisors (165163803498).

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

121120122222 is a wasteful number, since it uses less digits than its factorization.

121120122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611717808 (or 611717805 counting only the distinct ones).

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

Adding to 121120122222 its reverse (222221021121), we get a palindrome (343341143343).

It can be divided in two parts, 121120 and 122222, that added together give a palindrome (243342).

The spelling of 121120122222 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty-two".