121214812388 has 6 divisors (see below), whose sum is σ = 212125921686. Its totient is φ = 60607406192.

The previous prime is 121214812351. The next prime is 121214812421. The reversal of 121214812388 is 883218412121.

121214812388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 109549084324 + 11665728064 = 330982^2 + 108008^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15151851545 + ... + 15151851552.

It is an arithmetic number, because the mean of its divisors is an integer number (35354320281).

Almost surely, 2^121214812388 is an apocalyptic number.

It is an amenable number.

121214812388 is a deficient number, since it is larger than the sum of its proper divisors (90911109298).

121214812388 is a wasteful number, since it uses less digits than its factorization.

121214812388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30303703101 (or 30303703099 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The spelling of 121214812388 in words is "one hundred twenty-one billion, two hundred fourteen million, eight hundred twelve thousand, three hundred eighty-eight".