212101202221122 has 8 divisors (see below), whose sum is σ = 424202404442256. Its totient is φ = 70700400740372.

The previous prime is 212101202221087. The next prime is 212101202221133. The reversal of 212101202221122 is 221122202101212.

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

212101202221122 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17675100185088 + ... + 17675100185099.

It is an arithmetic number, because the mean of its divisors is an integer number (53025300555282).

Almost surely, 2^{212101202221122} is an apocalyptic number.

212101202221122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212101202221122 is a wasteful number, since it uses less digits than its factorization.

212101202221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35350200370192.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212101202221122 its reverse (221122202101212), we get a palindrome (433223404322334).

The spelling of 212101202221122 in words is "two hundred twelve trillion, one hundred one billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-two".