120220121222001 has 6 divisors (see below), whose sum is σ = 173651286209570. Its totient is φ = 80146747481328.

The previous prime is 120220121221961. The next prime is 120220121222017. The reversal of 120220121222001 is 100222121022021.

It is a happy number.

120220121222001 is a `hidden beast` number, since 12 + 0 + 220 + 1 + 212 + 220 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 120178269882225 + 41851339776 = 10962585^2 + 204576^2 .

It is not a de Polignac number, because 120220121222001 - 2¹⁹ = 120220120697713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120220121222051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6678895623436 + ... + 6678895623453.

Almost surely, 2^{120220121222001} is an apocalyptic number.

It is an amenable number.

120220121222001 is a deficient number, since it is larger than the sum of its proper divisors (53431164987569).

120220121222001 is a wasteful number, since it uses less digits than its factorization.

120220121222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357791246895 (or 13357791246892 counting only the distinct ones).

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

Adding to 120220121222001 its reverse (100222121022021), we get a palindrome (220442242244022).

The spelling of 120220121222001 in words is "one hundred twenty trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one".