42112022287 has 4 divisors (see below), whose sum is σ = 42164861256. Its totient is φ = 42059183320.

The previous prime is 42112022257. The next prime is 42112022291. The reversal of 42112022287 is 78222021124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42112022287 - 2¹⁹ = 42111497999 is a prime.

It is a super-2 number, since 2×42112022287² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112022257) 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 3 ways as a sum of consecutive naturals, for example, 26418289 + ... + 26419882.

It is an arithmetic number, because the mean of its divisors is an integer number (10541215314).

Almost surely, 2^42112022287 is an apocalyptic number.

42112022287 is a deficient number, since it is larger than the sum of its proper divisors (52838969).

42112022287 is an equidigital number, since it uses as much as digits as its factorization.

42112022287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52838968.

The product of its (nonzero) digits is 7168, while the sum is 31.

The spelling of 42112022287 in words is "forty-two billion, one hundred twelve million, twenty-two thousand, two hundred eighty-seven".