10221201222187 has 2 divisors, whose sum is σ = 10221201222188. Its totient is φ = 10221201222186.

The previous prime is 10221201222017. The next prime is 10221201222247. The reversal of 10221201222187 is 78122210212201.

10221201222187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78122210212201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10221201222187 - 2²⁷ = 10221067004459 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221201222487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110600611093 + 5110600611094.

It is an arithmetic number, because the mean of its divisors is an integer number (5110600611094).

Almost surely, 2^{10221201222187} is an apocalyptic number.

10221201222187 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221201222187 is an equidigital number, since it uses as much as digits as its factorization.

10221201222187 is an evil number, because the sum of its binary digits is even.

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

Adding to 10221201222187 its reverse (78122210212201), we get a palindrome (88343411434388).

The spelling of 10221201222187 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, one hundred eighty-seven".