213322321342442 has 32 divisors (see below), whose sum is σ = 350400292518864. Its totient is φ = 96799957977600.

The previous prime is 213322321342433. The next prime is 213322321342607. The reversal of 213322321342442 is 244243123223312.

It can be written as a sum of positive squares in 8 ways, for example, as 75898961424001 + 137423359918441 = 8712001^2 + 11722771^2 .

It is a super-2 number, since 2×213322321342442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213322321342396 and 213322321342405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25865753 + ... + 33101084.

Almost surely, 2^{213322321342442} is an apocalyptic number.

213322321342442 is a deficient number, since it is larger than the sum of its proper divisors (137077971176422).

213322321342442 is a wasteful number, since it uses less digits than its factorization.

213322321342442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58969194.

The product of its digits is 331776, while the sum is 38.

Adding to 213322321342442 its reverse (244243123223312), we get a palindrome (457565444565754).

The spelling of 213322321342442 in words is "two hundred thirteen trillion, three hundred twenty-two billion, three hundred twenty-one million, three hundred forty-two thousand, four hundred forty-two".