120001222100001 has 16 divisors (see below), whose sum is σ = 179264724907968. Its totient is φ = 70762391409600.

The previous prime is 120001222099991. The next prime is 120001222100057. The reversal of 120001222100001 is 100001222100021.

It is not a de Polignac number, because 120001222100001 - 2¹⁸ = 120001221837857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120001222100001.

It is not an unprimeable number, because it can be changed into a prime (120001222101001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49140548370 + ... + 49140550811.

It is an arithmetic number, because the mean of its divisors is an integer number (11204045306748).

Almost surely, 2^{120001222100001} is an apocalyptic number.

120001222100001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120001222100001 is a deficient number, since it is larger than the sum of its proper divisors (59263502807967).

120001222100001 is a wasteful number, since it uses less digits than its factorization.

120001222100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98281099232.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120001222100001 its reverse (100001222100021), we get a palindrome (220002444200022).

The spelling of 120001222100001 in words is "one hundred twenty trillion, one billion, two hundred twenty-two million, one hundred thousand, one".