121120012201111 has 16 divisors (see below), whose sum is σ = 158954493116160. Its totient is φ = 89411902375680.

The previous prime is 121120012201093. The next prime is 121120012201121. The reversal of 121120012201111 is 111102210021121.

It is not a de Polignac number, because 121120012201111 - 2⁵ = 121120012201079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120012201121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41394397786 + ... + 41394400711.

It is an arithmetic number, because the mean of its divisors is an integer number (9934655819760).

Almost surely, 2^{121120012201111} is an apocalyptic number.

121120012201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121120012201111 is a deficient number, since it is larger than the sum of its proper divisors (37834480915049).

121120012201111 is a wasteful number, since it uses less digits than its factorization.

121120012201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82788798534.

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

Adding to 121120012201111 its reverse (111102210021121), we get a palindrome (232222222222232).

The spelling of 121120012201111 in words is "one hundred twenty-one trillion, one hundred twenty billion, twelve million, two hundred one thousand, one hundred eleven".