121212112014 has 32 divisors (see below), whose sum is σ = 307840285440. Its totient is φ = 34632031896.

The previous prime is 121212112001. The next prime is 121212112019. The reversal of 121212112014 is 410211212121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212112019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160333104 + ... + 160333859.

It is an arithmetic number, because the mean of its divisors is an integer number (9620008920).

Almost surely, 2^121212112014 is an apocalyptic number.

121212112014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121212112014 is an abundant number, since it is smaller than the sum of its proper divisors (186628173426).

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

121212112014 is a wasteful number, since it uses less digits than its factorization.

121212112014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320666981 (or 320666975 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121212112014 its reverse (410211212121), we get a palindrome (531423324135).

The spelling of 121212112014 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred twelve thousand, fourteen".