122221011110 has 16 divisors (see below), whose sum is σ = 239997622032. Its totient is φ = 44444004000.

The previous prime is 122221011079. The next prime is 122221011139. The reversal of 122221011110 is 11110122221.

It is a congruent number.

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, 555549941 + ... + 555550160.

It is an arithmetic number, because the mean of its divisors is an integer number (14999851377).

Almost surely, 2^122221011110 is an apocalyptic number.

122221011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122221011110 is a deficient number, since it is larger than the sum of its proper divisors (117776610922).

122221011110 is a wasteful number, since it uses less digits than its factorization.

122221011110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111100119.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122221011110 its reverse (11110122221), we get a palindrome (133331133331).

Subtracting from 122221011110 its reverse (11110122221), we obtain a square (111110888889 = 333333²).

The spelling of 122221011110 in words is "one hundred twenty-two billion, two hundred twenty-one million, eleven thousand, one hundred ten".