102101212201 has 2 divisors, whose sum is σ = 102101212202. Its totient is φ = 102101212200.

The previous prime is 102101212183. The next prime is 102101212207. The reversal of 102101212201 is 102212101201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70410091801 + 31691120400 = 265349^2 + 178020^2 .

It is a cyclic number.

It is not a de Polignac number, because 102101212201 - 2²³ = 102092823593 is a prime.

It is not a weakly prime, because it can be changed into another prime (102101212207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050606100 + 51050606101.

It is an arithmetic number, because the mean of its divisors is an integer number (51050606101).

Almost surely, 2^102101212201 is an apocalyptic number.

It is an amenable number.

102101212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101212201 is an equidigital number, since it uses as much as digits as its factorization.

102101212201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102101212201 its reverse (102212101201), we get a palindrome (204313313402).

The spelling of 102101212201 in words is "one hundred two billion, one hundred one million, two hundred twelve thousand, two hundred one".