120102220221 has 4 divisors (see below), whose sum is σ = 160136293632. Its totient is φ = 80068146812.

The previous prime is 120102220213. The next prime is 120102220223. The reversal of 120102220221 is 122022201021.

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 120102220221 - 2³ = 120102220213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120102220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102220223) 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, 20017036701 + ... + 20017036706.

It is an arithmetic number, because the mean of its divisors is an integer number (40034073408).

Almost surely, 2^120102220221 is an apocalyptic number.

It is an amenable number.

120102220221 is a deficient number, since it is larger than the sum of its proper divisors (40034073411).

120102220221 is an equidigital number, since it uses as much as digits as its factorization.

120102220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40034073410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120102220221 its reverse (122022201021), we get a palindrome (242124421242).

The spelling of 120102220221 in words is "one hundred twenty billion, one hundred two million, two hundred twenty thousand, two hundred twenty-one".