201215611107 has 120 divisors (see below), whose sum is σ = 356050728000. Its totient is φ = 112895887104.

The previous prime is 201215611087. The next prime is 201215611117. The reversal of 201215611107 is 701116512102.

201215611107 is a `hidden beast` number, since 20 + 1 + 2 + 15 + 611 + 10 + 7 = 666.

201215611107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201215611107 - 2¹⁸ = 201215348963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201215611117) 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 119 ways as a sum of consecutive naturals, for example, 52630998 + ... + 52634820.

It is an arithmetic number, because the mean of its divisors is an integer number (2967089400).

Almost surely, 2^201215611107 is an apocalyptic number.

201215611107 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

201215611107 is a deficient number, since it is larger than the sum of its proper divisors (154835116893).

201215611107 is a wasteful number, since it uses less digits than its factorization.

201215611107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The spelling of 201215611107 in words is "two hundred one billion, two hundred fifteen million, six hundred eleven thousand, one hundred seven".