211201022021122 has 32 divisors (see below), whose sum is σ = 362458970875008. Its totient is φ = 90414755990016.

The previous prime is 211201022021057. The next prime is 211201022021147. The reversal of 211201022021122 is 221120220102112.

It is a self number, because there is not a number n which added to its sum of digits gives 211201022021122.

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 15 ways as a sum of consecutive naturals, for example, 47351538 + ... + 51619474.

It is an arithmetic number, because the mean of its divisors is an integer number (11326842839844).

Almost surely, 2^{211201022021122} is an apocalyptic number.

211201022021122 is a deficient number, since it is larger than the sum of its proper divisors (151257948853886).

211201022021122 is a wasteful number, since it uses less digits than its factorization.

211201022021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271850.

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

Adding to 211201022021122 its reverse (221120220102112), we get a palindrome (432321242123234).

The spelling of 211201022021122 in words is "two hundred eleven trillion, two hundred one billion, twenty-two million, twenty-one thousand, one hundred twenty-two".