422101242 has 12 divisors (see below), whose sum is σ = 914552730. Its totient is φ = 140700408.

The previous prime is 422101241. The next prime is 422101249. The reversal of 422101242 is 242101224.

422101242 is a `hidden beast` number, since 422 + 1 + 0 + 1 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 378263601 + 43837641 = 19449^2 + 6621^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 23450069 = 422101242 / (4 + 2 + 2 + 1 + 0 + 1 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (422101241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11725017 + ... + 11725052.

Almost surely, 2^422101242 is an apocalyptic number.

422101242 is an abundant number, since it is smaller than the sum of its proper divisors (492451488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422101242 is a wasteful number, since it uses less digits than its factorization.

422101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23450077 (or 23450074 counting only the distinct ones).

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

The square root of 422101242 is about 20545.1026281204. The cubic root of 422101242 is about 750.1340453744.

Subtracting from 422101242 its sum of digits (18), we obtain a palindrome (422101224).

Adding to 422101242 its reverse (242101224), we get a palindrome (664202466).

The spelling of 422101242 in words is "four hundred twenty-two million, one hundred one thousand, two hundred forty-two".