120221121200123 has 4 divisors (see below), whose sum is σ = 120221193553008. Its totient is φ = 120221048847240.

The previous prime is 120221121200119. The next prime is 120221121200197. The reversal of 120221121200123 is 321002121122021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120221121200123 - 2² = 120221121200119 is a prime.

It is a super-2 number, since 2×120221121200123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120221121200095 and 120221121200104.

It is not an unprimeable number, because it can be changed into a prime (120221121200923) 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, 33624023 + ... + 37027248.

It is an arithmetic number, because the mean of its divisors is an integer number (30055298388252).

Almost surely, 2^{120221121200123} is an apocalyptic number.

120221121200123 is a deficient number, since it is larger than the sum of its proper divisors (72352885).

120221121200123 is an equidigital number, since it uses as much as digits as its factorization.

120221121200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72352884.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 120221121200123 its reverse (321002121122021), we get a palindrome (441223242322144).

The spelling of 120221121200123 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, one hundred twenty-three".