101100002120 has 256 divisors, whose sum is σ = 256505356800. Its totient is φ = 35623526400.

The previous prime is 101100002119. The next prime is 101100002123. The reversal of 101100002120 is 21200001101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101100002098 and 101100002107.

It is not an unprimeable number, because it can be changed into a prime (101100002123) 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 63 ways as a sum of consecutive naturals, for example, 200993789 + ... + 200994291.

It is an arithmetic number, because the mean of its divisors is an integer number (1001974050).

Almost surely, 2^101100002120 is an apocalyptic number.

101100002120 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 101100002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128252678400).

101100002120 is an abundant number, since it is smaller than the sum of its proper divisors (155405354680).

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

101100002120 is a wasteful number, since it uses less digits than its factorization.

101100002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 756 counting only the distinct ones).

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

Adding to 101100002120 its reverse (21200001101), we get a palindrome (122300003221).

The spelling of 101100002120 in words is "one hundred one billion, one hundred million, two thousand, one hundred twenty".