2231817350121 has 12 divisors (see below), whose sum is σ = 3393406497520. Its totient is φ = 1409568852600.

The previous prime is 2231817350093. The next prime is 2231817350123. The reversal of 2231817350121 is 1210537181322.

2231817350121 is a `hidden beast` number, since 2 + 2 + 3 + 1 + 81 + 73 + 501 + 2 + 1 = 666.

2231817350121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2231817350121 - 2²¹ = 2231815252969 is a prime.

It is a super-3 number, since 3×2231817350121³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231817350123) 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, 6525781555 + ... + 6525781896.

Almost surely, 2^{2231817350121} is an apocalyptic number.

It is an amenable number.

2231817350121 is a deficient number, since it is larger than the sum of its proper divisors (1161589147399).

2231817350121 is a wasteful number, since it uses less digits than its factorization.

2231817350121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051563476 (or 13051563473 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 2231817350121 in words is "two trillion, two hundred thirty-one billion, eight hundred seventeen million, three hundred fifty thousand, one hundred twenty-one".