120221121122101 has 4 divisors (see below), whose sum is σ = 126548548549600. Its totient is φ = 113893693694604.

The previous prime is 120221121122033. The next prime is 120221121122143. The reversal of 120221121122101 is 101221121122021.

It is a happy number.

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 120221121122101 - 2¹³ = 120221121113909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6327427427479 = 120221121122101 / (1 + 2 + 0 + 2 + 2 + 1 + 1 + 2 + 1 + 1 + 2 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221121122161) 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, 3163713713721 + ... + 3163713713758.

It is an arithmetic number, because the mean of its divisors is an integer number (31637137137400).

Almost surely, 2^{120221121122101} is an apocalyptic number.

It is an amenable number.

120221121122101 is a deficient number, since it is larger than the sum of its proper divisors (6327427427499).

120221121122101 is an equidigital number, since it uses as much as digits as its factorization.

120221121122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327427427498.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120221121122101 its reverse (101221121122021), we get a palindrome (221442242244122).

The spelling of 120221121122101 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred one".