42122253321 has 12 divisors (see below), whose sum is σ = 60853807872. Its totient is φ = 28076631576.

The previous prime is 42122253269. The next prime is 42122253331. The reversal of 42122253321 is 12335222124.

42122253321 is a `hidden beast` number, since 4 + 2 + 122 + 2 + 533 + 2 + 1 = 666.

It is not a de Polignac number, because 42122253321 - 2¹⁰ = 42122252297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42122253331) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 350721 + ... + 455246.

It is an arithmetic number, because the mean of its divisors is an integer number (5071150656).

Almost surely, 2^42122253321 is an apocalyptic number.

It is an amenable number.

42122253321 is a deficient number, since it is larger than the sum of its proper divisors (18731554551).

42122253321 is a wasteful number, since it uses less digits than its factorization.

42122253321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811780 (or 811777 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 42122253321 its reverse (12335222124), we get a palindrome (54457475445).

The spelling of 42122253321 in words is "forty-two billion, one hundred twenty-two million, two hundred fifty-three thousand, three hundred twenty-one".