120112222201221 has 4 divisors (see below), whose sum is σ = 160149629601632. Its totient is φ = 80074814800812.

The previous prime is 120112222201189. The next prime is 120112222201271. The reversal of 120112222201221 is 122102222211021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120112222201221 - 2⁵ = 120112222201189 is a prime.

It is a super-2 number, since 2×120112222201221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112222201271) 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, 20018703700201 + ... + 20018703700206.

It is an arithmetic number, because the mean of its divisors is an integer number (40037407400408).

Almost surely, 2^{120112222201221} is an apocalyptic number.

It is an amenable number.

120112222201221 is a deficient number, since it is larger than the sum of its proper divisors (40037407400411).

120112222201221 is an equidigital number, since it uses as much as digits as its factorization.

120112222201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40037407400410.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 120112222201221 its reverse (122102222211021), we get a palindrome (242214444412242).

The spelling of 120112222201221 in words is "one hundred twenty trillion, one hundred twelve billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty-one".