120012022221 has 24 divisors (see below), whose sum is σ = 198024914880. Its totient is φ = 63303042816.

The previous prime is 120012022171. The next prime is 120012022259. The reversal of 120012022221 is 122220210021.

It is not a de Polignac number, because 120012022221 - 2⁷ = 120012022093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120012022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012022421) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16904316 + ... + 16911413.

It is an arithmetic number, because the mean of its divisors is an integer number (8251038120).

Almost surely, 2^120012022221 is an apocalyptic number.

It is an amenable number.

120012022221 is a deficient number, since it is larger than the sum of its proper divisors (78012892659).

120012022221 is a wasteful number, since it uses less digits than its factorization.

120012022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33815765 (or 33815752 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120012022221 its reverse (122220210021), we get a palindrome (242232232242).

The spelling of 120012022221 in words is "one hundred twenty billion, twelve million, twenty-two thousand, two hundred twenty-one".