121121203320001 has 4 divisors (see below), whose sum is σ = 121123990514052. Its totient is φ = 121118416125952.

The previous prime is 121121203319983. The next prime is 121121203320023. The reversal of 121121203320001 is 100023302121121.

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 52893619840000 + 68227583480001 = 7272800^2 + 8259999^2 .

It is a cyclic number.

It is not a de Polignac number, because 121121203320001 - 2⁹ = 121121203319489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121203320071) 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, 1393531840 + ... + 1393618753.

It is an arithmetic number, because the mean of its divisors is an integer number (30280997628513).

Almost surely, 2^{121121203320001} is an apocalyptic number.

It is an amenable number.

121121203320001 is a deficient number, since it is larger than the sum of its proper divisors (2787194051).

121121203320001 is an equidigital number, since it uses as much as digits as its factorization.

121121203320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787194050.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121121203320001 its reverse (100023302121121), we get a palindrome (221144505441122).

The spelling of 121121203320001 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred three million, three hundred twenty thousand, one".