122011100 has 36 divisors (see below), whose sum is σ = 265873608. Its totient is φ = 48600000.

The previous prime is 122011069. The next prime is 122011139. The reversal of 122011100 is 1110221.

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 11 ways as a sum of consecutive naturals, for example, 22670 + ... + 27530.

It is an arithmetic number, because the mean of its divisors is an integer number (7385378).

Almost surely, 2^122011100 is an apocalyptic number.

122011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011100 is an abundant number, since it is smaller than the sum of its proper divisors (143862508).

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

122011100 is a wasteful number, since it uses less digits than its factorization.

122011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 122011100 is about 11045.8634791491. The cubic root of 122011100 is about 495.9826075674.

Adding to 122011100 its reverse (1110221), we get a palindrome (123121321).

The spelling of 122011100 in words is "one hundred twenty-two million, eleven thousand, one hundred".