101212102112201 has 4 divisors (see below), whose sum is σ = 102107784431892. Its totient is φ = 100316419792512.

The previous prime is 101212102112197. The next prime is 101212102112207. The reversal of 101212102112201 is 102211201212101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53878183710976 + 47333918401225 = 7340176^2 + 6879965^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212102112201 - 2² = 101212102112197 is a prime.

It is a super-2 number, since 2×101212102112201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101212102112201.

It is not an unprimeable number, because it can be changed into a prime (101212102112207) 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 in 3 ways as a sum of consecutive naturals, for example, 447841159676 + ... + 447841159901.

It is an arithmetic number, because the mean of its divisors is an integer number (25526946107973).

Almost surely, 2^{101212102112201} is an apocalyptic number.

It is an amenable number.

101212102112201 is a deficient number, since it is larger than the sum of its proper divisors (895682319691).

101212102112201 is an equidigital number, since it uses as much as digits as its factorization.

101212102112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895682319690.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101212102112201 its reverse (102211201212101), we get a palindrome (203423303324302).

The spelling of 101212102112201 in words is "one hundred one trillion, two hundred twelve billion, one hundred two million, one hundred twelve thousand, two hundred one".