121112122131212 has 24 divisors (see below), whose sum is σ = 211966992890352. Its totient is φ = 60550124544000.

The previous prime is 121112122131211. The next prime is 121112122131223. The reversal of 121112122131212 is 212131221211121.

It is a super-2 number, since 2×121112122131212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121112122131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968341212 + ... + 2968382012.

It is an arithmetic number, because the mean of its divisors is an integer number (8831958037098).

Almost surely, 2^{121112122131212} is an apocalyptic number.

It is an amenable number.

121112122131212 is a deficient number, since it is larger than the sum of its proper divisors (90854870759140).

121112122131212 is a wasteful number, since it uses less digits than its factorization.

121112122131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95369 (or 95367 counting only the distinct ones).

The product of its digits is 192, while the sum is 23.

Adding to 121112122131212 its reverse (212131221211121), we get a palindrome (333243343342333).

The spelling of 121112122131212 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred twelve".