120220021266 has 16 divisors (see below), whose sum is σ = 242275464288. Its totient is φ = 39767436800.

The previous prime is 120220021237. The next prime is 120220021267. The reversal of 120220021266 is 662120022021.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120220021267) 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, 76475055 + ... + 76476626.

It is an arithmetic number, because the mean of its divisors is an integer number (15142216518).

Almost surely, 2^120220021266 is an apocalyptic number.

120220021266 is an abundant number, since it is smaller than the sum of its proper divisors (122055443022).

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

120220021266 is a wasteful number, since it uses less digits than its factorization.

120220021266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152951817.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 120220021266 its reverse (662120022021), we get a palindrome (782340043287).

The spelling of 120220021266 in words is "one hundred twenty billion, two hundred twenty million, twenty-one thousand, two hundred sixty-six".