122011100000 has 144 divisors (see below), whose sum is σ = 301500671472. Its totient is φ = 48600000000.

The previous prime is 122011099981. The next prime is 122011100009. The reversal of 122011100000 is 1110221.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011100009) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 25097570 + ... + 25102430.

It is an arithmetic number, because the mean of its divisors is an integer number (2093754663).

Almost surely, 2^122011100000 is an apocalyptic number.

122011100000 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 122011100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150750335736).

122011100000 is an abundant number, since it is smaller than the sum of its proper divisors (179489571472).

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

122011100000 is an frugal number, since it uses more digits than its factorization.

122011100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5119 counting only the distinct ones).

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

Adding to 122011100000 its reverse (1110221), we get a palindrome (122012210221).

The spelling of 122011100000 in words is "one hundred twenty-two billion, eleven million, one hundred thousand".