20224040121 has 32 divisors (see below), whose sum is σ = 31234391040. Its totient is φ = 12918528000.

The previous prime is 20224040117. The next prime is 20224040143. The reversal of 20224040121 is 12104042202.

20224040121 is a `hidden beast` number, since 2 + 0 + 2 + 240 + 401 + 21 = 666.

It is not a de Polignac number, because 20224040121 - 2² = 20224040117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20224040094 and 20224040103.

It is not an unprimeable number, because it can be changed into a prime (20224040171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35080 + ... + 204153.

It is an arithmetic number, because the mean of its divisors is an integer number (976074720).

Almost surely, 2^20224040121 is an apocalyptic number.

It is an amenable number.

20224040121 is a deficient number, since it is larger than the sum of its proper divisors (11010350919).

20224040121 is a wasteful number, since it uses less digits than its factorization.

20224040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239374 (or 239368 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20224040121 its reverse (12104042202), we get a palindrome (32328082323).

The spelling of 20224040121 in words is "twenty billion, two hundred twenty-four million, forty thousand, one hundred twenty-one".