120200120221221 has 6 divisors (see below), whose sum is σ = 173622395875110. Its totient is φ = 80133413480808.

The previous prime is 120200120221189. The next prime is 120200120221267. The reversal of 120200120221221 is 122122021002021.

It is a happy number.

120200120221221 is a `hidden beast` number, since 1 + 2 + 0 + 200 + 1 + 20 + 221 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 88184100828321 + 32016019392900 = 9390639^2 + 5658270^2 .

It is not a de Polignac number, because 120200120221221 - 2⁵ = 120200120221189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120200120221194 and 120200120221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200120220221) 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, 6677784456726 + ... + 6677784456743.

It is an arithmetic number, because the mean of its divisors is an integer number (28937065979185).

Almost surely, 2^{120200120221221} is an apocalyptic number.

It is an amenable number.

120200120221221 is a deficient number, since it is larger than the sum of its proper divisors (53422275653889).

120200120221221 is a wasteful number, since it uses less digits than its factorization.

120200120221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13355568913475 (or 13355568913472 counting only the distinct ones).

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

Adding to 120200120221221 its reverse (122122021002021), we get a palindrome (242322141223242).

The spelling of 120200120221221 in words is "one hundred twenty trillion, two hundred billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".