12221201000087 has 2 divisors, whose sum is σ = 12221201000088. Its totient is φ = 12221201000086.

The previous prime is 12221201000081. The next prime is 12221201000101. The reversal of 12221201000087 is 78000010212221.

12221201000087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (78000010212221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221201000087 - 2⁶ = 12221201000023 is a prime.

It is a super-3 number, since 3×12221201000087³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221201000081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110600500043 + 6110600500044.

It is an arithmetic number, because the mean of its divisors is an integer number (6110600500044).

Almost surely, 2^{12221201000087} is an apocalyptic number.

12221201000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221201000087 is an equidigital number, since it uses as much as digits as its factorization.

12221201000087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 12221201000087 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, eighty-seven", and thus it is an aban number.