440212023045121 has 4 divisors (see below), whose sum is σ = 440483926705200. Its totient is φ = 439940119385044.

The previous prime is 440212023045083. The next prime is 440212023045127. The reversal of 440212023045121 is 121540320212044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440212023045121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440212023045127) 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, 135951827611 + ... + 135951830848.

It is an arithmetic number, because the mean of its divisors is an integer number (110120981676300).

Almost surely, 2^{440212023045121} is an apocalyptic number.

It is an amenable number.

440212023045121 is a deficient number, since it is larger than the sum of its proper divisors (271903660079).

440212023045121 is a wasteful number, since it uses less digits than its factorization.

440212023045121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271903660078.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 440212023045121 its reverse (121540320212044), we get a palindrome (561752343257165).

The spelling of 440212023045121 in words is "four hundred forty trillion, two hundred twelve billion, twenty-three million, forty-five thousand, one hundred twenty-one".