120121021121101 has 32 divisors (see below), whose sum is σ = 161282367848448. Its totient is φ = 86400200456640.

The previous prime is 120121021121089. The next prime is 120121021121149. The reversal of 120121021121101 is 101121120121021.

It is not a de Polignac number, because 120121021121101 - 2³¹ = 120118873637453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121021121191) 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, 238449850 + ... + 238953076.

It is an arithmetic number, because the mean of its divisors is an integer number (5040073995264).

Almost surely, 2^{120121021121101} is an apocalyptic number.

120121021121101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120121021121101 is a deficient number, since it is larger than the sum of its proper divisors (41161346727347).

120121021121101 is a wasteful number, since it uses less digits than its factorization.

120121021121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741721.

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

Adding to 120121021121101 its reverse (101121120121021), we get a palindrome (221242141242122).

The spelling of 120121021121101 in words is "one hundred twenty trillion, one hundred twenty-one billion, twenty-one million, one hundred twenty-one thousand, one hundred one".