120022021221 has 8 divisors (see below), whose sum is σ = 162221544960. Its totient is φ = 78918589152.

The previous prime is 120022021219. The next prime is 120022021241. The reversal of 120022021221 is 122120220021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120022021221 - 2¹ = 120022021219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120022021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120022021241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 274022661 + ... + 274023098.

It is an arithmetic number, because the mean of its divisors is an integer number (20277693120).

Almost surely, 2^120022021221 is an apocalyptic number.

It is an amenable number.

120022021221 is a deficient number, since it is larger than the sum of its proper divisors (42199523739).

120022021221 is an equidigital number, since it uses as much as digits as its factorization.

120022021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548045835.

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

Adding to 120022021221 its reverse (122120220021), we get a palindrome (242142241242).

The spelling of 120022021221 in words is "one hundred twenty billion, twenty-two million, twenty-one thousand, two hundred twenty-one".