121012210012 has 12 divisors (see below), whose sum is σ = 219073828680. Its totient is φ = 58419687536.

The previous prime is 121012210003. The next prime is 121012210019. The reversal of 121012210012 is 210012210121.

It is a junction number, because it is equal to n+sod(n) for n = 121012209974 and 121012210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012210019) 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 3 ways as a sum of consecutive naturals, for example, 521604238 + ... + 521604469.

It is an arithmetic number, because the mean of its divisors is an integer number (18256152390).

Almost surely, 2^121012210012 is an apocalyptic number.

It is an amenable number.

121012210012 is a deficient number, since it is larger than the sum of its proper divisors (98061618668).

121012210012 is a wasteful number, since it uses less digits than its factorization.

121012210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043208740 (or 1043208738 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121012210012 its reverse (210012210121), we get a palindrome (331024420133).

The spelling of 121012210012 in words is "one hundred twenty-one billion, twelve million, two hundred ten thousand, twelve".