120102202102221 has 6 divisors (see below), whose sum is σ = 173480958592110. Its totient is φ = 80068134734808.

The previous prime is 120102202102139. The next prime is 120102202102271. The reversal of 120102202102221 is 122201202201021.

It is a happy number.

120102202102221 is a `hidden beast` number, since 1 + 2 + 0 + 10 + 220 + 210 + 2 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 107055007934121 + 13047194168100 = 10346739^2 + 3612090^2 .

It is not a de Polignac number, because 120102202102221 - 2¹¹ = 120102202100173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120102202102194 and 120102202102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102202102271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6672344561226 + ... + 6672344561243.

It is an arithmetic number, because the mean of its divisors is an integer number (28913493098685).

Almost surely, 2^{120102202102221} is an apocalyptic number.

It is an amenable number.

120102202102221 is a deficient number, since it is larger than the sum of its proper divisors (53378756489889).

120102202102221 is a wasteful number, since it uses less digits than its factorization.

120102202102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13344689122475 (or 13344689122472 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120102202102221 its reverse (122201202201021), we get a palindrome (242303404303242).

The spelling of 120102202102221 in words is "one hundred twenty trillion, one hundred two billion, two hundred two million, one hundred two thousand, two hundred twenty-one".