120221203211 has 4 divisors (see below), whose sum is σ = 127293038712. Its totient is φ = 113149367712.

The previous prime is 120221203171. The next prime is 120221203241. The reversal of 120221203211 is 112302122021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112302122021 = 1811 ⋅62011111.

It is a cyclic number.

It is not a de Polignac number, because 120221203211 - 2¹⁰ = 120221202187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7071835483 = 120221203211 / (1 + 2 + 0 + 2 + 2 + 1 + 2 + 0 + 3 + 2 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120221203211.

It is not an unprimeable number, because it can be changed into a prime (120221203241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3535917725 + ... + 3535917758.

It is an arithmetic number, because the mean of its divisors is an integer number (31823259678).

Almost surely, 2^120221203211 is an apocalyptic number.

120221203211 is a deficient number, since it is larger than the sum of its proper divisors (7071835501).

120221203211 is an equidigital number, since it uses as much as digits as its factorization.

120221203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071835500.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 120221203211 its reverse (112302122021), we get a palindrome (232523325232).

The spelling of 120221203211 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred three thousand, two hundred eleven".