42021021322 has 32 divisors (see below), whose sum is σ = 74919740544. Its totient is φ = 17301816000.

The previous prime is 42021021293. The next prime is 42021021349. The reversal of 42021021322 is 22312012024.

It is a self number, because there is not a number n which added to its sum of digits gives 42021021322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535429 + ... + 608872.

It is an arithmetic number, because the mean of its divisors is an integer number (2341241892).

Almost surely, 2^42021021322 is an apocalyptic number.

42021021322 is a deficient number, since it is larger than the sum of its proper divisors (32898719222).

42021021322 is a wasteful number, since it uses less digits than its factorization.

42021021322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144414.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42021021322 its reverse (22312012024), we get a palindrome (64333033346).

The spelling of 42021021322 in words is "forty-two billion, twenty-one million, twenty-one thousand, three hundred twenty-two".