121234243265012 has 24 divisors (see below), whose sum is σ = 214683099681792. Its totient is φ = 59900418324000.

The previous prime is 121234243265011. The next prime is 121234243265029. The reversal of 121234243265012 is 210562342432121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121234243265011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525326903 + ... + 525557630.

It is an arithmetic number, because the mean of its divisors is an integer number (8945129153408).

Almost surely, 2^{121234243265012} is an apocalyptic number.

It is an amenable number.

121234243265012 is a deficient number, since it is larger than the sum of its proper divisors (93448856416780).

121234243265012 is a wasteful number, since it uses less digits than its factorization.

121234243265012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050884879 (or 1050884877 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 121234243265012 its reverse (210562342432121), we get a palindrome (331796585697133).

The spelling of 121234243265012 in words is "one hundred twenty-one trillion, two hundred thirty-four billion, two hundred forty-three million, two hundred sixty-five thousand, twelve".