42245531121 has 16 divisors (see below), whose sum is σ = 57091970880. Its totient is φ = 27782853120.

The previous prime is 42245531101. The next prime is 42245531143. The reversal of 42245531121 is 12113554224.

It is not a de Polignac number, because 42245531121 - 2¹³ = 42245522929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42245531101) 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, 67095 + ... + 298316.

It is an arithmetic number, because the mean of its divisors is an integer number (3568248180).

Almost surely, 2^42245531121 is an apocalyptic number.

It is an amenable number.

42245531121 is a deficient number, since it is larger than the sum of its proper divisors (14846439759).

42245531121 is a wasteful number, since it uses less digits than its factorization.

42245531121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365936.

The product of its digits is 9600, while the sum is 30.

The spelling of 42245531121 in words is "forty-two billion, two hundred forty-five million, five hundred thirty-one thousand, one hundred twenty-one".