201115612 has 12 divisors (see below), whose sum is σ = 352357096. Its totient is φ = 100442160.

The previous prime is 201115591. The next prime is 201115613. The reversal of 201115612 is 216511102.

It is a self number, because there is not a number n which added to its sum of digits gives 201115612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201115613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24939 + ... + 32002.

Almost surely, 2^201115612 is an apocalyptic number.

It is an amenable number.

201115612 is a deficient number, since it is larger than the sum of its proper divisors (151241484).

201115612 is a wasteful number, since it uses less digits than its factorization.

201115612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57828 (or 57826 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 201115612 is about 14181.5236134909. The cubic root of 201115612 is about 585.8888885306. Note that the first 6 decimals are identical.

Adding to 201115612 its reverse (216511102), we get a palindrome (417626714).

The spelling of 201115612 in words is "two hundred one million, one hundred fifteen thousand, six hundred twelve".