2234120423521 has 16 divisors (see below), whose sum is σ = 2569450650624. Its totient is φ = 1902837366864.

The previous prime is 2234120423503. The next prime is 2234120423533. The reversal of 2234120423521 is 1253240214322.

It is a happy number.

It is not a de Polignac number, because 2234120423521 - 2²¹ = 2234118326369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2234120423321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5682516 + ... + 6062938.

It is an arithmetic number, because the mean of its divisors is an integer number (160590665664).

Almost surely, 2^{2234120423521} is an apocalyptic number.

It is an amenable number.

2234120423521 is a deficient number, since it is larger than the sum of its proper divisors (335330227103).

2234120423521 is a wasteful number, since it uses less digits than its factorization.

2234120423521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385740.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2234120423521 its reverse (1253240214322), we get a palindrome (3487360637843).

The spelling of 2234120423521 in words is "two trillion, two hundred thirty-four billion, one hundred twenty million, four hundred twenty-three thousand, five hundred twenty-one".