921112020121001 has 8 divisors (see below), whose sum is σ = 933896387919264. Its totient is φ = 908394761865600.

The previous prime is 921112020120983. The next prime is 921112020121003. The reversal of 921112020121001 is 100121020211129.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-921112020121001 is a prime.

It is a super-2 number, since 2×921112020121001² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921112020121003) 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, 16777358075 + ... + 16777412976.

It is an arithmetic number, because the mean of its divisors is an integer number (116737048489908).

Almost surely, 2^{921112020121001} is an apocalyptic number.

It is an amenable number.

921112020121001 is a deficient number, since it is larger than the sum of its proper divisors (12784367798263).

921112020121001 is a wasteful number, since it uses less digits than its factorization.

921112020121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33554771431.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 921112020121001 in words is "nine hundred twenty-one trillion, one hundred twelve billion, twenty million, one hundred twenty-one thousand, one".