121211243433104 has 40 divisors (see below), whose sum is σ = 256197122974560. Its totient is φ = 55095884006400.

The previous prime is 121211243433101. The next prime is 121211243433109. The reversal of 121211243433104 is 401334342112121.

It is not an unprimeable number, because it can be changed into a prime (121211243433101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117810659 + ... + 118835069.

It is an arithmetic number, because the mean of its divisors is an integer number (6404928074364).

Almost surely, 2^{121211243433104} is an apocalyptic number.

It is an amenable number.

121211243433104 is an abundant number, since it is smaller than the sum of its proper divisors (134985879541456).

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

121211243433104 is a wasteful number, since it uses less digits than its factorization.

121211243433104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696719 (or 1696713 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 121211243433104 its reverse (401334342112121), we get a palindrome (522545585545225).

The spelling of 121211243433104 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred forty-three million, four hundred thirty-three thousand, one hundred four".