201615351222 has 16 divisors (see below), whose sum is σ = 405038914560. Its totient is φ = 66903748392.

The previous prime is 201615351199. The next prime is 201615351227. The reversal of 201615351222 is 222153516102.

It is a self number, because there is not a number n which added to its sum of digits gives 201615351222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201615351227) 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, 75340722 + ... + 75343397.

It is an arithmetic number, because the mean of its divisors is an integer number (25314932160).

Almost surely, 2^201615351222 is an apocalyptic number.

201615351222 is an abundant number, since it is smaller than the sum of its proper divisors (203423563338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201615351222 is a wasteful number, since it uses less digits than its factorization.

201615351222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150684347.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 201615351222 its reverse (222153516102), we get a palindrome (423768867324).

The spelling of 201615351222 in words is "two hundred one billion, six hundred fifteen million, three hundred fifty-one thousand, two hundred twenty-two".