201021120122122 has 8 divisors (see below), whose sum is σ = 302251326199200. Its totient is φ = 100270678055724.

The previous prime is 201021120122051. The next prime is 201021120122129. The reversal of 201021120122122 is 221221021120102.

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 201021120122122.

It is not an unprimeable number, because it can be changed into a prime (201021120122129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119941001622 + ... + 119941003297.

It is an arithmetic number, because the mean of its divisors is an integer number (37781415774900).

Almost surely, 2^{201021120122122} is an apocalyptic number.

201021120122122 is a deficient number, since it is larger than the sum of its proper divisors (101230206077078).

201021120122122 is a wasteful number, since it uses less digits than its factorization.

201021120122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239882005340.

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

Adding to 201021120122122 its reverse (221221021120102), we get a palindrome (422242141242224).

The spelling of 201021120122122 in words is "two hundred one trillion, twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-two".