121001111121110 has 128 divisors (see below), whose sum is σ = 256438971532800. Its totient is φ = 40631193216000.

The previous prime is 121001111121047. The next prime is 121001111121133. The reversal of 121001111121110 is 11121111100121.

121001111121110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94393565 + ... + 95666855.

It is an arithmetic number, because the mean of its divisors is an integer number (2003429465100).

Almost surely, 2^{121001111121110} is an apocalyptic number.

121001111121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001111121110 is an abundant number, since it is smaller than the sum of its proper divisors (135437860411690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121001111121110 is a wasteful number, since it uses less digits than its factorization.

121001111121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274478.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 121001111121110 its reverse (11121111100121), we get a palindrome (132122222221231).

It can be divided in two parts, 121001 and 111121110, that added together give a palindrome (111242111).

The spelling of 121001111121110 in words is "one hundred twenty-one trillion, one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred ten".