120211021002221 has 16 divisors (see below), whose sum is σ = 121930501651200. Its totient is φ = 118496535026688.

The previous prime is 120211021002217. The next prime is 120211021002229. The reversal of 120211021002221 is 122200120112021.

It is a cyclic number.

It is not a de Polignac number, because 120211021002221 - 2² = 120211021002217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120211021002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211021002229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391634210 + ... + 391941036.

It is an arithmetic number, because the mean of its divisors is an integer number (7620656353200).

Almost surely, 2^{120211021002221} is an apocalyptic number.

It is an amenable number.

120211021002221 is a deficient number, since it is larger than the sum of its proper divisors (1719480648979).

120211021002221 is an equidigital number, since it uses as much as digits as its factorization.

120211021002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314948.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120211021002221 its reverse (122200120112021), we get a palindrome (242411141114242).

The spelling of 120211021002221 in words is "one hundred twenty trillion, two hundred eleven billion, twenty-one million, two thousand, two hundred twenty-one".