211210020221122 has 8 divisors (see below), whose sum is σ = 341185417280316. Its totient is φ = 97481547794352.

The previous prime is 211210020221077. The next prime is 211210020221131. The reversal of 211210020221122 is 221122020012112.

It can be written as a sum of positive squares in 2 ways, for example, as 208552041051561 + 2657979169561 = 14441331^2 + 1630331^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 211210020221122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4061731158073 + ... + 4061731158124.

Almost surely, 2^{211210020221122} is an apocalyptic number.

211210020221122 is a deficient number, since it is larger than the sum of its proper divisors (129975397059194).

211210020221122 is a wasteful number, since it uses less digits than its factorization.

211210020221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123462316212.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211210020221122 its reverse (221122020012112), we get a palindrome (432332040233234).

The spelling of 211210020221122 in words is "two hundred eleven trillion, two hundred ten billion, twenty million, two hundred twenty-one thousand, one hundred twenty-two".