221002221112122 has 16 divisors (see below), whose sum is σ = 442049911371072. Its totient is φ = 73659828846240.

The previous prime is 221002221112111. The next prime is 221002221112157. The reversal of 221002221112122 is 221211122200122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1894484598 + ... + 1894601249.

It is an arithmetic number, because the mean of its divisors is an integer number (27628119460692).

Almost surely, 2^{221002221112122} is an apocalyptic number.

221002221112122 is an abundant number, since it is smaller than the sum of its proper divisors (221047690258950).

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

221002221112122 is a wasteful number, since it uses less digits than its factorization.

221002221112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789095573.

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

Adding to 221002221112122 its reverse (221211122200122), we get a palindrome (442213343312244).

The spelling of 221002221112122 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".