120012312103221 has 4 divisors (see below), whose sum is σ = 160016416137632. Its totient is φ = 80008208068812.

The previous prime is 120012312103199. The next prime is 120012312103249. The reversal of 120012312103221 is 122301213210021.

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 120012312103221 - 2¹³ = 120012312095029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012312103291) 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, 20002052017201 + ... + 20002052017206.

It is an arithmetic number, because the mean of its divisors is an integer number (40004104034408).

Almost surely, 2^{120012312103221} is an apocalyptic number.

It is an amenable number.

120012312103221 is a deficient number, since it is larger than the sum of its proper divisors (40004104034411).

120012312103221 is an equidigital number, since it uses as much as digits as its factorization.

120012312103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40004104034410.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 120012312103221 its reverse (122301213210021), we get a palindrome (242313525313242).

The spelling of 120012312103221 in words is "one hundred twenty trillion, twelve billion, three hundred twelve million, one hundred three thousand, two hundred twenty-one".