221211100011122 has 16 divisors (see below), whose sum is σ = 357648265719360. Its totient is φ = 102009642771792.

The previous prime is 221211100011113. The next prime is 221211100011127. The reversal of 221211100011122 is 221110001112122.

It is a self number, because there is not a number n which added to its sum of digits gives 221211100011122.

It is not an unprimeable number, because it can be changed into a prime (221211100011127) 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, 3657802622 + ... + 3657863097.

It is an arithmetic number, because the mean of its divisors is an integer number (22353016607460).

Almost surely, 2^{221211100011122} is an apocalyptic number.

221211100011122 is a deficient number, since it is larger than the sum of its proper divisors (136437165708238).

221211100011122 is a wasteful number, since it uses less digits than its factorization.

221211100011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7315666897.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221211100011122 its reverse (221110001112122), we get a palindrome (442321101123244).

The spelling of 221211100011122 in words is "two hundred twenty-one trillion, two hundred eleven billion, one hundred million, eleven thousand, one hundred twenty-two".