42124342212 has 36 divisors (see below), whose sum is σ = 106493144940. Its totient is φ = 14039842752.

The previous prime is 42124342181. The next prime is 42124342241. The reversal of 42124342212 is 21224342124.

It is a happy number.

42124342212 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 434 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29095489476 + 13028852736 = 170574^2 + 114144^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276714 + ... + 401022.

It is an arithmetic number, because the mean of its divisors is an integer number (2958142915).

Almost surely, 2^42124342212 is an apocalyptic number.

It is an amenable number.

42124342212 is an abundant number, since it is smaller than the sum of its proper divisors (64368802728).

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

42124342212 is a wasteful number, since it uses less digits than its factorization.

42124342212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133732 (or 133727 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 42124342212 its reverse (21224342124), we get a palindrome (63348684336).

The spelling of 42124342212 in words is "forty-two billion, one hundred twenty-four million, three hundred forty-two thousand, two hundred twelve".