121110112101212 has 24 divisors (see below), whose sum is σ = 228452912592576. Its totient is φ = 55846297568448.

The previous prime is 121110112101203. The next prime is 121110112101229. The reversal of 121110112101212 is 212101211011121.

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, 1055718083 + ... + 1055832794.

It is an arithmetic number, because the mean of its divisors is an integer number (9518871358024).

Almost surely, 2^{121110112101212} is an apocalyptic number.

It is an amenable number.

121110112101212 is a deficient number, since it is larger than the sum of its proper divisors (107342800491364).

121110112101212 is a wasteful number, since it uses less digits than its factorization.

121110112101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111551997 (or 2111551995 counting only the distinct ones).

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

Adding to 121110112101212 its reverse (212101211011121), we get a palindrome (333211323112333).

The spelling of 121110112101212 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twelve million, one hundred one thousand, two hundred twelve".