201215611042 has 16 divisors (see below), whose sum is σ = 318044406240. Its totient is φ = 95211993888.

The previous prime is 201215611033. The next prime is 201215611049. The reversal of 201215611042 is 240116512102.

It is a junction number, because it is equal to n+sod(n) for n = 201215610998 and 201215611016.

It is not an unprimeable number, because it can be changed into a prime (201215611049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759763 + ... + 2831734.

It is an arithmetic number, because the mean of its divisors is an integer number (19877775390).

Almost surely, 2^201215611042 is an apocalyptic number.

201215611042 is a deficient number, since it is larger than the sum of its proper divisors (116828795198).

201215611042 is a wasteful number, since it uses less digits than its factorization.

201215611042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592465.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 201215611042 in words is "two hundred one billion, two hundred fifteen million, six hundred eleven thousand, forty-two".