201215611087 has 2 divisors, whose sum is σ = 201215611088. Its totient is φ = 201215611086.

The previous prime is 201215611049. The next prime is 201215611117. The reversal of 201215611087 is 780116512102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201215611087 - 2¹¹ = 201215609039 is a prime.

It is a super-2 number, since 2×201215611087² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201215611007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100607805543 + 100607805544.

It is an arithmetic number, because the mean of its divisors is an integer number (100607805544).

Almost surely, 2^201215611087 is an apocalyptic number.

201215611087 is a deficient number, since it is larger than the sum of its proper divisors (1).

201215611087 is an equidigital number, since it uses as much as digits as its factorization.

201215611087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 201215611087 in words is "two hundred one billion, two hundred fifteen million, six hundred eleven thousand, eighty-seven".