212010222120101 has 4 divisors (see below), whose sum is σ = 212010265022400. Its totient is φ = 212010179217804.

The previous prime is 212010222120089. The next prime is 212010222120157. The reversal of 212010222120101 is 101021222010212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212010222120101 - 2¹⁴ = 212010222103717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212010222120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010222120001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12903191 + ... + 24300468.

It is an arithmetic number, because the mean of its divisors is an integer number (53002566255600).

Almost surely, 2^{212010222120101} is an apocalyptic number.

It is an amenable number.

212010222120101 is a deficient number, since it is larger than the sum of its proper divisors (42902299).

212010222120101 is an equidigital number, since it uses as much as digits as its factorization.

212010222120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42902298.

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

Adding to 212010222120101 its reverse (101021222010212), we get a palindrome (313031444130313).

The spelling of 212010222120101 in words is "two hundred twelve trillion, ten billion, two hundred twenty-two million, one hundred twenty thousand, one hundred one".