42022232121 has 16 divisors (see below), whose sum is σ = 56325024000. Its totient is φ = 27867385728.

The previous prime is 42022232117. The next prime is 42022232129. The reversal of 42022232121 is 12123222024.

It is not a de Polignac number, because 42022232121 - 2² = 42022232117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42022232129) 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, 640555 + ... + 703103.

It is an arithmetic number, because the mean of its divisors is an integer number (3520314000).

Almost surely, 2^42022232121 is an apocalyptic number.

It is an amenable number.

42022232121 is a deficient number, since it is larger than the sum of its proper divisors (14302791879).

42022232121 is a wasteful number, since it uses less digits than its factorization.

42022232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63728.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42022232121 its reverse (12123222024), we get a palindrome (54145454145).

The spelling of 42022232121 in words is "forty-two billion, twenty-two million, two hundred thirty-two thousand, one hundred twenty-one".