120021122222 has 4 divisors (see below), whose sum is σ = 180031683336. Its totient is φ = 60010561110.

The previous prime is 120021122197. The next prime is 120021122237. The reversal of 120021122222 is 222221120021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222221120021 = 23 ⋅9661787827.

It is a self number, because there is not a number n which added to its sum of digits gives 120021122222.

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 as a sum of consecutive naturals, namely, 30005280554 + ... + 30005280557.

It is an arithmetic number, because the mean of its divisors is an integer number (45007920834).

Almost surely, 2^120021122222 is an apocalyptic number.

120021122222 is a deficient number, since it is larger than the sum of its proper divisors (60010561114).

120021122222 is an equidigital number, since it uses as much as digits as its factorization.

120021122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60010561113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 120021122222 its reverse (222221120021), we get a palindrome (342242242243).

The spelling of 120021122222 in words is "one hundred twenty billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".