12211212202087 has 2 divisors, whose sum is σ = 12211212202088. Its totient is φ = 12211212202086.

The previous prime is 12211212202081. The next prime is 12211212202141. The reversal of 12211212202087 is 78020221211221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12211212202087 - 2¹⁵ = 12211212169319 is a prime.

It is a super-2 number, since 2×12211212202087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211212202081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105606101043 + 6105606101044.

It is an arithmetic number, because the mean of its divisors is an integer number (6105606101044).

Almost surely, 2^{12211212202087} is an apocalyptic number.

12211212202087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211212202087 is an equidigital number, since it uses as much as digits as its factorization.

12211212202087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 12211212202087 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, two hundred two thousand, eighty-seven".