221201001101122 has 16 divisors (see below), whose sum is σ = 379212245447040. Its totient is φ = 94797796724928.

The previous prime is 221201001100999. The next prime is 221201001101149. The reversal of 221201001101122 is 221101100102122.

It is a junction number, because it is equal to n+sod(n) for n = 221201001101096 and 221201001101105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 218837622 + ... + 219846097.

It is an arithmetic number, because the mean of its divisors is an integer number (23700765340440).

Almost surely, 2^{221201001101122} is an apocalyptic number.

221201001101122 is a deficient number, since it is larger than the sum of its proper divisors (158011244345918).

221201001101122 is a wasteful number, since it uses less digits than its factorization.

221201001101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438719745.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221201001101122 its reverse (221101100102122), we get a palindrome (442302101203244).

The spelling of 221201001101122 in words is "two hundred twenty-one trillion, two hundred one billion, one million, one hundred one thousand, one hundred twenty-two".