215343420422 has 16 divisors (see below), whose sum is σ = 348864948432. Its totient is φ = 99102842400.

The previous prime is 215343420421. The next prime is 215343420473. The reversal of 215343420422 is 224024343512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215343420421) 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, 11925329 + ... + 11943372.

It is an arithmetic number, because the mean of its divisors is an integer number (21804059277).

Almost surely, 2^215343420422 is an apocalyptic number.

215343420422 is a deficient number, since it is larger than the sum of its proper divisors (133521528010).

215343420422 is a wasteful number, since it uses less digits than its factorization.

215343420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23869063.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 215343420422 its reverse (224024343512), we get a palindrome (439367763934).

The spelling of 215343420422 in words is "two hundred fifteen billion, three hundred forty-three million, four hundred twenty thousand, four hundred twenty-two".