121120221102113 has 4 divisors (see below), whose sum is σ = 121128180650820. Its totient is φ = 121112261553408.

The previous prime is 121120221102109. The next prime is 121120221102131. The reversal of 121120221102113 is 311201122021121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67270704304384 + 53849516797729 = 8201872^2 + 7338223^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120221102113 - 2² = 121120221102109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120221108113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3979751528 + ... + 3979781961.

It is an arithmetic number, because the mean of its divisors is an integer number (30282045162705).

Almost surely, 2^{121120221102113} is an apocalyptic number.

It is an amenable number.

121120221102113 is a deficient number, since it is larger than the sum of its proper divisors (7959548707).

121120221102113 is an equidigital number, since it uses as much as digits as its factorization.

121120221102113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7959548706.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121120221102113 its reverse (311201122021121), we get a palindrome (432321343123234).

The spelling of 121120221102113 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred two thousand, one hundred thirteen".