221211101122 has 16 divisors (see below), whose sum is σ = 365565783744. Its totient is φ = 99554950000.

The previous prime is 221211101117. The next prime is 221211101143. The reversal of 221211101122 is 221101112122.

221211101122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221211101096 and 221211101105.

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 7 ways as a sum of consecutive naturals, for example, 49775254 + ... + 49779697.

It is an arithmetic number, because the mean of its divisors is an integer number (22847861484).

Almost surely, 2^221211101122 is an apocalyptic number.

221211101122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221211101122 is a deficient number, since it is larger than the sum of its proper divisors (144354682622).

221211101122 is a wasteful number, since it uses less digits than its factorization.

221211101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99555065.

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

Adding to 221211101122 its reverse (221101112122), we get a palindrome (442312213244).

The spelling of 221211101122 in words is "two hundred twenty-one billion, two hundred eleven million, one hundred one thousand, one hundred twenty-two".