121121211001112 has 32 divisors (see below), whose sum is σ = 270830037024000. Its totient is φ = 49652173453344.

The previous prime is 121121211001093. The next prime is 121121211001127. The reversal of 121121211001112 is 211100112121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47019102362 + ... + 47019104937.

It is an arithmetic number, because the mean of its divisors is an integer number (8463438657000).

Almost surely, 2^{121121211001112} is an apocalyptic number.

It is an amenable number.

121121211001112 is an abundant number, since it is smaller than the sum of its proper divisors (149708826022888).

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

121121211001112 is a wasteful number, since it uses less digits than its factorization.

121121211001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94038207335 (or 94038207331 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121121211001112 its reverse (211100112121121), we get a palindrome (332221323122233).

The spelling of 121121211001112 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred eleven million, one thousand, one hundred twelve".