120021120121101 has 32 divisors (see below), whose sum is σ = 162803234880000. Its totient is φ = 78627595345728.

The previous prime is 120021120121087. The next prime is 120021120121139. The reversal of 120021120121101 is 101121021120021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-120021120121101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021120121501) 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 31 ways as a sum of consecutive naturals, for example, 6613089175 + ... + 6613107323.

It is an arithmetic number, because the mean of its divisors is an integer number (5087601090000).

Almost surely, 2^{120021120121101} is an apocalyptic number.

It is an amenable number.

120021120121101 is a deficient number, since it is larger than the sum of its proper divisors (42782114758899).

120021120121101 is a wasteful number, since it uses less digits than its factorization.

120021120121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30553.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120021120121101 its reverse (101121021120021), we get a palindrome (221142141241122).

The spelling of 120021120121101 in words is "one hundred twenty trillion, twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, one hundred one".