201215611105 has 8 divisors (see below), whose sum is σ = 246596153472. Its totient is φ = 157547542128.

The previous prime is 201215611087. The next prime is 201215611117. The reversal of 201215611105 is 501116512102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201215611105 - 2¹⁵ = 201215578337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201215611105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428118087 + ... + 428118556.

It is an arithmetic number, because the mean of its divisors is an integer number (30824519184).

Almost surely, 2^201215611105 is an apocalyptic number.

It is an amenable number.

201215611105 is a deficient number, since it is larger than the sum of its proper divisors (45380542367).

201215611105 is an equidigital number, since it uses as much as digits as its factorization.

201215611105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856236695.

The product of its (nonzero) digits is 600, while the sum is 25.

The spelling of 201215611105 in words is "two hundred one billion, two hundred fifteen million, six hundred eleven thousand, one hundred five".