121102333300021 has 4 divisors (see below), whose sum is σ = 121771406964844. Its totient is φ = 120433259635200.

The previous prime is 121102333300007. The next prime is 121102333300043. The reversal of 121102333300021 is 120003333201121.

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 773061219121 + 120329272080900 = 879239^2 + 10969470^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102333300021 - 2²⁹ = 121101796429109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121102333299965 and 121102333300001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102333300051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334536832140 + ... + 334536832501.

It is an arithmetic number, because the mean of its divisors is an integer number (30442851741211).

Almost surely, 2^{121102333300021} is an apocalyptic number.

It is an amenable number.

121102333300021 is a deficient number, since it is larger than the sum of its proper divisors (669073664823).

121102333300021 is an equidigital number, since it uses as much as digits as its factorization.

121102333300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669073664822.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121102333300021 its reverse (120003333201121), we get a palindrome (241105666501142).

The spelling of 121102333300021 in words is "one hundred twenty-one trillion, one hundred two billion, three hundred thirty-three million, three hundred thousand, twenty-one".