42212031020 has 48 divisors (see below), whose sum is σ = 93632867328. Its totient is φ = 15960127680.

The previous prime is 42212030963. The next prime is 42212031023. The reversal of 42212031020 is 2013021224.

It is a self number, because there is not a number n which added to its sum of digits gives 42212031020.

It is not an unprimeable number, because it can be changed into a prime (42212031023) 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, 765014 + ... + 818333.

It is an arithmetic number, because the mean of its divisors is an integer number (1950684736).

Almost surely, 2^42212031020 is an apocalyptic number.

It is an amenable number.

42212031020 is an abundant number, since it is smaller than the sum of its proper divisors (51420836308).

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

42212031020 is a wasteful number, since it uses less digits than its factorization.

42212031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583430 (or 1583428 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42212031020 its reverse (2013021224), we get a palindrome (44225052244).

The spelling of 42212031020 in words is "forty-two billion, two hundred twelve million, thirty-one thousand, twenty".