120220201221 has 32 divisors (see below), whose sum is σ = 163366748160. Its totient is φ = 78624359424.

The previous prime is 120220201207. The next prime is 120220201237. The reversal of 120220201221 is 122102022021.

It is not a de Polignac number, because 120220201221 - 2¹¹ = 120220199173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120220201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220201201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65088520 + ... + 65090366.

It is an arithmetic number, because the mean of its divisors is an integer number (5105210880).

Almost surely, 2^120220201221 is an apocalyptic number.

It is an amenable number.

120220201221 is a deficient number, since it is larger than the sum of its proper divisors (43146546939).

120220201221 is a wasteful number, since it uses less digits than its factorization.

120220201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545.

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

Adding to 120220201221 its reverse (122102022021), we get a palindrome (242322223242).

The spelling of 120220201221 in words is "one hundred twenty billion, two hundred twenty million, two hundred one thousand, two hundred twenty-one".