121012103312 has 20 divisors (see below), whose sum is σ = 234467598396. Its totient is φ = 60504336000.

The previous prime is 121012103309. The next prime is 121012103339. The reversal of 121012103312 is 213301210121.

121012103312 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 2 ways, for example, as 23440834816 + 97571268496 = 153104^2 + 312364^2 .

It is a super-2 number, since 2×121012103312² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627038 + ... + 796994.

Almost surely, 2^121012103312 is an apocalyptic number.

It is an amenable number.

121012103312 is a deficient number, since it is larger than the sum of its proper divisors (113455495084).

121012103312 is a wasteful number, since it uses less digits than its factorization.

121012103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214466 (or 214460 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121012103312 its reverse (213301210121), we get a palindrome (334313313433).

The spelling of 121012103312 in words is "one hundred twenty-one billion, twelve million, one hundred three thousand, three hundred twelve".