120001212101001 has 32 divisors (see below), whose sum is σ = 206361242496000. Its totient is φ = 60188695721280.

The previous prime is 120001212100999. The next prime is 120001212101003. The reversal of 120001212101001 is 100101212100021.

It is an interprime number because it is at equal distance from previous prime (120001212100999) and next prime (120001212101003).

It is not a de Polignac number, because 120001212101001 - 2¹ = 120001212100999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120001212101003) 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, 8956644451 + ... + 8956657848.

It is an arithmetic number, because the mean of its divisors is an integer number (6448788828000).

Almost surely, 2^{120001212101001} is an apocalyptic number.

120001212101001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120001212101001 is a deficient number, since it is larger than the sum of its proper divisors (86360030394999).

120001212101001 is a wasteful number, since it uses less digits than its factorization.

120001212101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17913302349.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120001212101001 its reverse (100101212100021), we get a palindrome (220102424201022).

The spelling of 120001212101001 in words is "one hundred twenty trillion, one billion, two hundred twelve million, one hundred one thousand, one".