120201221222001 has 12 divisors (see below), whose sum is σ = 173625978923280. Its totient is φ = 80133227767320.

The previous prime is 120201221221993. The next prime is 120201221222029. The reversal of 120201221222001 is 100222122102021.

It is a happy number.

120201221222001 is a `hidden beast` number, since 1 + 20 + 201 + 221 + 2 + 220 + 0 + 1 = 666.

It is not a de Polignac number, because 120201221222001 - 2³ = 120201221221993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120201221222041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75814635 + ... + 77383856.

It is an arithmetic number, because the mean of its divisors is an integer number (14468831576940).

Almost surely, 2^{120201221222001} is an apocalyptic number.

It is an amenable number.

120201221222001 is a deficient number, since it is larger than the sum of its proper divisors (53424757701279).

120201221222001 is a wasteful number, since it uses less digits than its factorization.

120201221222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153285676 (or 153285673 counting only the distinct ones).

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

Adding to 120201221222001 its reverse (100222122102021), we get a palindrome (220423343324022).

The spelling of 120201221222001 in words is "one hundred twenty trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty-two thousand, one".