210212012022101 has 4 divisors (see below), whose sum is σ = 210213183318732. Its totient is φ = 210210840725472.

The previous prime is 210212012022091. The next prime is 210212012022119. The reversal of 210212012022101 is 101220210212012.

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 29175013932100 + 181036998090001 = 5401390^2 + 13454999^2 .

It is a cyclic number.

It is not a de Polignac number, because 210212012022101 - 2³⁸ = 209937134115157 is a prime.

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 210212012022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212012021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585379070 + ... + 585738063.

It is an arithmetic number, because the mean of its divisors is an integer number (52553295829683).

Almost surely, 2^{210212012022101} is an apocalyptic number.

It is an amenable number.

210212012022101 is a deficient number, since it is larger than the sum of its proper divisors (1171296631).

210212012022101 is a wasteful number, since it uses less digits than its factorization.

210212012022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171296630.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210212012022101 its reverse (101220210212012), we get a palindrome (311432222234113).

The spelling of 210212012022101 in words is "two hundred ten trillion, two hundred twelve billion, twelve million, twenty-two thousand, one hundred one".