215315053322 has 4 divisors (see below), whose sum is σ = 322972579986. Its totient is φ = 107657526660.

The previous prime is 215315053243. The next prime is 215315053339. The reversal of 215315053322 is 223350513512.

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., 120019980721 + 95295072601 = 346439^2 + 308699^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53828763329 + ... + 53828763332.

Almost surely, 2^215315053322 is an apocalyptic number.

215315053322 is a deficient number, since it is larger than the sum of its proper divisors (107657526664).

215315053322 is a wasteful number, since it uses less digits than its factorization.

215315053322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107657526663.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 215315053322 its reverse (223350513512), we get a palindrome (438665566834).

The spelling of 215315053322 in words is "two hundred fifteen billion, three hundred fifteen million, fifty-three thousand, three hundred twenty-two".