120012112110221 has 4 divisors (see below), whose sum is σ = 120039443499744. Its totient is φ = 119984780720700.

The previous prime is 120012112110193. The next prime is 120012112110257. The reversal of 120012112110221 is 122011211210021.

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 a cyclic number.

It is not a de Polignac number, because 120012112110221 - 2¹⁸ = 120012111848077 is a prime.

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 120012112110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012112110281) 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, 13665688175 + ... + 13665696956.

It is an arithmetic number, because the mean of its divisors is an integer number (30009860874936).

Almost surely, 2^{120012112110221} is an apocalyptic number.

It is an amenable number.

120012112110221 is a deficient number, since it is larger than the sum of its proper divisors (27331389523).

120012112110221 is an equidigital number, since it uses as much as digits as its factorization.

120012112110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27331389522.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120012112110221 its reverse (122011211210021), we get a palindrome (242023323320242).

The spelling of 120012112110221 in words is "one hundred twenty trillion, twelve billion, one hundred twelve million, one hundred ten thousand, two hundred twenty-one".