121233201022213 has 12 divisors (see below), whose sum is σ = 141611548400652. Its totient is φ = 103482993156480.

The previous prime is 121233201022211. The next prime is 121233201022229. The reversal of 121233201022213 is 312220102332121.

It can be written as a sum of positive squares in 2 ways, for example, as 111380520367809 + 9852680654404 = 10553697^2 + 3138898^2 .

It is not a de Polignac number, because 121233201022213 - 2¹ = 121233201022211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233201022211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5133073170 + ... + 5133096787.

It is an arithmetic number, because the mean of its divisors is an integer number (11800962366721).

Almost surely, 2^{121233201022213} is an apocalyptic number.

It is an amenable number.

121233201022213 is a deficient number, since it is larger than the sum of its proper divisors (20378347378439).

121233201022213 is a wasteful number, since it uses less digits than its factorization.

121233201022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266170212 (or 10266170205 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121233201022213 its reverse (312220102332121), we get a palindrome (433453303354334).

The spelling of 121233201022213 in words is "one hundred twenty-one trillion, two hundred thirty-three billion, two hundred one million, twenty-two thousand, two hundred thirteen".