212101000120221 has 8 divisors (see below), whose sum is σ = 282807345487104. Its totient is φ = 141397660750080.

The previous prime is 212101000120067. The next prime is 212101000120259. The reversal of 212101000120221 is 122021000101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212101000120221 - 2¹⁷ = 212100999989149 is a prime.

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 212101000120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101000120021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751334541 + ... + 751616786.

It is an arithmetic number, because the mean of its divisors is an integer number (35350918185888).

Almost surely, 2^{212101000120221} is an apocalyptic number.

It is an amenable number.

212101000120221 is a deficient number, since it is larger than the sum of its proper divisors (70706345366883).

212101000120221 is a wasteful number, since it uses less digits than its factorization.

212101000120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502998371.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212101000120221 its reverse (122021000101212), we get a palindrome (334122000221433).

The spelling of 212101000120221 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty thousand, two hundred twenty-one".