121024211210243 has 64 divisors (see below), whose sum is σ = 135300203089920. Its totient is φ = 107328414441600.

The previous prime is 121024211210191. The next prime is 121024211210251. The reversal of 121024211210243 is 342012112420121.

It is not a de Polignac number, because 121024211210243 - 2⁸ = 121024211209987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121024211210743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55541169728 + ... + 55541171906.

It is an arithmetic number, because the mean of its divisors is an integer number (2114065673280).

Almost surely, 2^{121024211210243} is an apocalyptic number.

121024211210243 is a deficient number, since it is larger than the sum of its proper divisors (14275991879677).

121024211210243 is a wasteful number, since it uses less digits than its factorization.

121024211210243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 121024211210243 its reverse (342012112420121), we get a palindrome (463036323630364).

The spelling of 121024211210243 in words is "one hundred twenty-one trillion, twenty-four billion, two hundred eleven million, two hundred ten thousand, two hundred forty-three".