122101121100 has 288 divisors, whose sum is σ = 420519085056. Its totient is φ = 26770867200.

The previous prime is 122101121099. The next prime is 122101121119. The reversal of 122101121100 is 1121101221.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 95 ways as a sum of consecutive naturals, for example, 5505634 + ... + 5527766.

It is an arithmetic number, because the mean of its divisors is an integer number (1460135712).

Almost surely, 2^122101121100 is an apocalyptic number.

122101121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122101121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210259542528).

122101121100 is an abundant number, since it is smaller than the sum of its proper divisors (298417963956).

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

122101121100 is a wasteful number, since it uses less digits than its factorization.

122101121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22265 (or 22258 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122101121100 its reverse (1121101221), we get a palindrome (123222222321).

It can be divided in two parts, 122101121 and 100, that added together give a palindrome (122101221).

The spelling of 122101121100 in words is "one hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred".