120210101221 has 4 divisors (see below), whose sum is σ = 137382972832. Its totient is φ = 103037229612.

The previous prime is 120210101213. The next prime is 120210101233. The reversal of 120210101221 is 122101012021.

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 120210101221 - 2³ = 120210101213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210107221) 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, 8586435795 + ... + 8586435808.

It is an arithmetic number, because the mean of its divisors is an integer number (34345743208).

Almost surely, 2^120210101221 is an apocalyptic number.

It is an amenable number.

120210101221 is a deficient number, since it is larger than the sum of its proper divisors (17172871611).

120210101221 is an equidigital number, since it uses as much as digits as its factorization.

120210101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17172871610.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120210101221 its reverse (122101012021), we get a palindrome (242311113242).

The spelling of 120210101221 in words is "one hundred twenty billion, two hundred ten million, one hundred one thousand, two hundred twenty-one".