42204233121 has 16 divisors (see below), whose sum is σ = 56994600960. Its totient is φ = 27775135440.

The previous prime is 42204233101. The next prime is 42204233161. The reversal of 42204233121 is 12133240224.

It is a happy number.

It is not a de Polignac number, because 42204233121 - 2²³ = 42195844513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42204233091 and 42204233100.

It is not an unprimeable number, because it can be changed into a prime (42204233101) 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 15 ways as a sum of consecutive naturals, for example, 1771116 + ... + 1794786.

It is an arithmetic number, because the mean of its divisors is an integer number (3562162560).

Almost surely, 2^42204233121 is an apocalyptic number.

It is an amenable number.

42204233121 is a deficient number, since it is larger than the sum of its proper divisors (14790367839).

42204233121 is a wasteful number, since it uses less digits than its factorization.

42204233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31276.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42204233121 its reverse (12133240224), we get a palindrome (54337473345).

The spelling of 42204233121 in words is "forty-two billion, two hundred four million, two hundred thirty-three thousand, one hundred twenty-one".