201122110221222 has 16 divisors (see below), whose sum is σ = 402246583504560. Its totient is φ = 67040309563392.

The previous prime is 201122110221163. The next prime is 201122110221283. The reversal of 201122110221222 is 222122011221102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97353523 + ... + 99397950.

It is an arithmetic number, because the mean of its divisors is an integer number (25140411469035).

Almost surely, 2^{201122110221222} is an apocalyptic number.

201122110221222 is an abundant number, since it is smaller than the sum of its proper divisors (201124473283338).

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

201122110221222 is a wasteful number, since it uses less digits than its factorization.

201122110221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196921847.

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

Adding to 201122110221222 its reverse (222122011221102), we get a palindrome (423244121442324).

The spelling of 201122110221222 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".