121021312332001 has 4 divisors (see below), whose sum is σ = 121022262905904. Its totient is φ = 121020361758100.

The previous prime is 121021312331999. The next prime is 121021312332047. The reversal of 121021312332001 is 100233213120121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121021312332001 - 2¹ = 121021312331999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021312332091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475095955 + ... + 475350616.

It is an arithmetic number, because the mean of its divisors is an integer number (30255565726476).

Almost surely, 2^{121021312332001} is an apocalyptic number.

It is an amenable number.

121021312332001 is a deficient number, since it is larger than the sum of its proper divisors (950573903).

121021312332001 is an equidigital number, since it uses as much as digits as its factorization.

121021312332001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950573902.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121021312332001 its reverse (100233213120121), we get a palindrome (221254525452122).

The spelling of 121021312332001 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred twelve million, three hundred thirty-two thousand, one".