42421231322 has 4 divisors (see below), whose sum is σ = 63631846986. Its totient is φ = 21210615660.

The previous prime is 42421231253. The next prime is 42421231331. The reversal of 42421231322 is 22313212424.

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

It can be written as a sum of positive squares in only one way, i.e., 35925032521 + 6496198801 = 189539^2 + 80599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42421231291 and 42421231300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605307829 + ... + 10605307832.

Almost surely, 2^42421231322 is an apocalyptic number.

42421231322 is a deficient number, since it is larger than the sum of its proper divisors (21210615664).

42421231322 is a wasteful number, since it uses less digits than its factorization.

42421231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210615663.

The product of its digits is 4608, while the sum is 26.

Adding to 42421231322 its reverse (22313212424), we get a palindrome (64734443746).

The spelling of 42421231322 in words is "forty-two billion, four hundred twenty-one million, two hundred thirty-one thousand, three hundred twenty-two".