120001121202221 has 16 divisors (see below), whose sum is σ = 139076318304000. Its totient is φ = 101408980968960.

The previous prime is 120001121202181. The next prime is 120001121202223. The reversal of 120001121202221 is 122202121100021.

It is a de Polignac number, because none of the positive numbers 2^k-120001121202221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120001121202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001121202223) 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, 210521405 + ... + 211090653.

It is an arithmetic number, because the mean of its divisors is an integer number (8692269894000).

Almost surely, 2^{120001121202221} is an apocalyptic number.

It is an amenable number.

120001121202221 is a deficient number, since it is larger than the sum of its proper divisors (19075197101779).

120001121202221 is an equidigital number, since it uses as much as digits as its factorization.

120001121202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993484.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120001121202221 its reverse (122202121100021), we get a palindrome (242203242302242).

The spelling of 120001121202221 in words is "one hundred twenty trillion, one billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty-one".