121011102221 has 8 divisors (see below), whose sum is σ = 124476762144. Its totient is φ = 117593244720.

The previous prime is 121011102217. The next prime is 121011102257. The reversal of 121011102221 is 122201110121.

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 121011102221 - 2² = 121011102217 is a prime.

It is a super-2 number, since 2×121011102221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121011102196 and 121011102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11945471 + ... + 11955596.

It is an arithmetic number, because the mean of its divisors is an integer number (15559595268).

Almost surely, 2^121011102221 is an apocalyptic number.

It is an amenable number.

121011102221 is a deficient number, since it is larger than the sum of its proper divisors (3465659923).

121011102221 is an equidigital number, since it uses as much as digits as its factorization.

121011102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23901211.

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

Adding to 121011102221 its reverse (122201110121), we get a palindrome (243212212342).

The spelling of 121011102221 in words is "one hundred twenty-one billion, eleven million, one hundred two thousand, two hundred twenty-one".