213142212452 has 24 divisors (see below), whose sum is σ = 403415111736. Its totient is φ = 97951120128.

The previous prime is 213142212433. The next prime is 213142212457. The reversal of 213142212452 is 254212241312.

It can be written as a sum of positive squares in 4 ways, for example, as 6493781056 + 206648431396 = 80584^2 + 454586^2 .

It is not an unprimeable number, because it can be changed into a prime (213142212457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8783783 + ... + 8808014.

It is an arithmetic number, because the mean of its divisors is an integer number (16808962989).

Almost surely, 2^213142212452 is an apocalyptic number.

It is an amenable number.

213142212452 is a deficient number, since it is larger than the sum of its proper divisors (190272899284).

213142212452 is a wasteful number, since it uses less digits than its factorization.

213142212452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592047 (or 17592045 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

Adding to 213142212452 its reverse (254212241312), we get a palindrome (467354453764).

The spelling of 213142212452 in words is "two hundred thirteen billion, one hundred forty-two million, two hundred twelve thousand, four hundred fifty-two".