121221102022113 has 8 divisors (see below), whose sum is σ = 161630093330176. Its totient is φ = 80813089364400.

The previous prime is 121221102022079. The next prime is 121221102022133. The reversal of 121221102022113 is 311220201122121.

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

It is not a de Polignac number, because 121221102022113 - 2¹² = 121221102018017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121221102022113.

It is not an unprimeable number, because it can be changed into a prime (121221102022133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244373518 + ... + 244869063.

It is an arithmetic number, because the mean of its divisors is an integer number (20203761666272).

Almost surely, 2^{121221102022113} is an apocalyptic number.

It is an amenable number.

121221102022113 is a deficient number, since it is larger than the sum of its proper divisors (40408991308063).

121221102022113 is an equidigital number, since it uses as much as digits as its factorization.

121221102022113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489325175.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121221102022113 its reverse (311220201122121), we get a palindrome (432441303144234).

The spelling of 121221102022113 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred two million, twenty-two thousand, one hundred thirteen".