120102120221 has 4 divisors (see below), whose sum is σ = 120287750112. Its totient is φ = 119916490332.

The previous prime is 120102120191. The next prime is 120102120223. The reversal of 120102120221 is 122021201021.

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 120102120221 - 2⁶ = 120102120157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120102120196 and 120102120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92813975 + ... + 92815268.

It is an arithmetic number, because the mean of its divisors is an integer number (30071937528).

Almost surely, 2^120102120221 is an apocalyptic number.

It is an amenable number.

120102120221 is a deficient number, since it is larger than the sum of its proper divisors (185629891).

120102120221 is an equidigital number, since it uses as much as digits as its factorization.

120102120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185629890.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120102120221 its reverse (122021201021), we get a palindrome (242123321242).

The spelling of 120102120221 in words is "one hundred twenty billion, one hundred two million, one hundred twenty thousand, two hundred twenty-one".