221102121122 has 16 divisors (see below), whose sum is σ = 336346178112. Its totient is φ = 108986930640.

The previous prime is 221102121113. The next prime is 221102121127. The reversal of 221102121122 is 221121201122.

221102121122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221102121122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221102121122.

It is not an unprimeable number, because it can be changed into a prime (221102121127) by changing a digit.

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, 2653133 + ... + 2735199.

It is an arithmetic number, because the mean of its divisors is an integer number (21021636132).

Almost surely, 2^221102121122 is an apocalyptic number.

221102121122 is a deficient number, since it is larger than the sum of its proper divisors (115244056990).

221102121122 is a wasteful number, since it uses less digits than its factorization.

221102121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221102121122 its reverse (221121201122), we get a palindrome (442223322244).

The spelling of 221102121122 in words is "two hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty-two".