120121221110011 has 32 divisors (see below), whose sum is σ = 137904296878080. Its totient is φ = 103627729497600.

The previous prime is 120121221109987. The next prime is 120121221110027. The reversal of 120121221110011 is 110011122121021.

It is not a de Polignac number, because 120121221110011 - 2⁵ = 120121221109979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121221110081) 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, 9520270 + ... + 18190051.

It is an arithmetic number, because the mean of its divisors is an integer number (4309509277440).

Almost surely, 2^{120121221110011} is an apocalyptic number.

120121221110011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120121221110011 is a deficient number, since it is larger than the sum of its proper divisors (17783075768069).

120121221110011 is a wasteful number, since it uses less digits than its factorization.

120121221110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27710595.

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

Adding to 120121221110011 its reverse (110011122121021), we get a palindrome (230132343231032).

The spelling of 120121221110011 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred ten thousand, eleven".