121400305012 has 12 divisors (see below), whose sum is σ = 242800610080. Its totient is φ = 52028702136.

The previous prime is 121400305007. The next prime is 121400305049. The reversal of 121400305012 is 210503004121.

121400305012 is an admirable number.

It is a congruent number.

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, 2167862562 + ... + 2167862617.

Almost surely, 2^121400305012 is an apocalyptic number.

It is an amenable number.

121400305012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121400305012 is a wasteful number, since it uses less digits than its factorization.

121400305012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335725190 (or 4335725188 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 121400305012 its reverse (210503004121), we get a palindrome (331903309133).

The spelling of 121400305012 in words is "one hundred twenty-one billion, four hundred million, three hundred five thousand, twelve".