121001012020433 has 16 divisors (see below), whose sum is σ = 123878371558656. Its totient is φ = 118126540546560.

The previous prime is 121001012020423. The next prime is 121001012020451. The reversal of 121001012020433 is 334020210100121.

It is not a de Polignac number, because 121001012020433 - 2²⁴ = 121000995243217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001012020423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1985447960 + ... + 1985508902.

It is an arithmetic number, because the mean of its divisors is an integer number (7742398222416).

Almost surely, 2^{121001012020433} is an apocalyptic number.

It is an amenable number.

121001012020433 is a deficient number, since it is larger than the sum of its proper divisors (2877359538223).

121001012020433 is a wasteful number, since it uses less digits than its factorization.

121001012020433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83864.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121001012020433 its reverse (334020210100121), we get a palindrome (455021222120554).

The spelling of 121001012020433 in words is "one hundred twenty-one trillion, one billion, twelve million, twenty thousand, four hundred thirty-three".