121011200010221 has 8 divisors (see below), whose sum is σ = 121127341695360. Its totient is φ = 120895101245952.

The previous prime is 121011200010203. The next prime is 121011200010247. The reversal of 121011200010221 is 122010002110121.

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

It is a cyclic number.

It is not a de Polignac number, because 121011200010221 - 2¹⁴ = 121011199993837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121011200010196 and 121011200010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011200018221) 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, 5087285 + ... + 16367738.

It is an arithmetic number, because the mean of its divisors is an integer number (15140917711920).

Almost surely, 2^{121011200010221} is an apocalyptic number.

It is an amenable number.

121011200010221 is a deficient number, since it is larger than the sum of its proper divisors (116141685139).

121011200010221 is a wasteful number, since it uses less digits than its factorization.

121011200010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21460435.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121011200010221 its reverse (122010002110121), we get a palindrome (243021202120342).

The spelling of 121011200010221 in words is "one hundred twenty-one trillion, eleven billion, two hundred million, ten thousand, two hundred twenty-one".