120221111222001 has 32 divisors (see below), whose sum is σ = 180052876396800. Its totient is φ = 79272645062400.

The previous prime is 120221111221949. The next prime is 120221111222021. The reversal of 120221111222001 is 100222111122021.

120221111222001 is a `hidden beast` number, since 120 + 2 + 211 + 112 + 220 + 0 + 1 = 666.

It is not a de Polignac number, because 120221111222001 - 2²⁷ = 120220977004273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120221111222021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19897381 + ... + 25225938.

It is an arithmetic number, because the mean of its divisors is an integer number (5626652387400).

Almost surely, 2^{120221111222001} is an apocalyptic number.

It is an amenable number.

120221111222001 is a deficient number, since it is larger than the sum of its proper divisors (59831765174799).

120221111222001 is a wasteful number, since it uses less digits than its factorization.

120221111222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45124406 (or 45124400 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120221111222001 its reverse (100222111122021), we get a palindrome (220443222344022).

The spelling of 120221111222001 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twenty-two thousand, one".