122011021100 has 18 divisors (see below), whose sum is σ = 264763916004. Its totient is φ = 48804408400.

The previous prime is 122011021049. The next prime is 122011021103. The reversal of 122011021100 is 1120110221.

It is not an unprimeable number, because it can be changed into a prime (122011021103) 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 5 ways as a sum of consecutive naturals, for example, 610055006 + ... + 610055205.

Almost surely, 2^122011021100 is an apocalyptic number.

122011021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011021100 is an abundant number, since it is smaller than the sum of its proper divisors (142752894904).

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

122011021100 is a wasteful number, since it uses less digits than its factorization.

122011021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220110225 (or 1220110218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122011021100 its reverse (1120110221), we get a palindrome (123131131321).

It can be divided in two parts, 12201 and 1021100, that added together give a palindrome (1033301).

The spelling of 122011021100 in words is "one hundred twenty-two billion, eleven million, twenty-one thousand, one hundred".