101121024100 has 72 divisors (see below), whose sum is σ = 221728933440. Its totient is φ = 40025973120.

The previous prime is 101121024091. The next prime is 101121024107. The reversal of 101121024100 is 1420121101.

It is not an unprimeable number, because it can be changed into a prime (101121024107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10663161 + ... + 10672639.

It is an arithmetic number, because the mean of its divisors is an integer number (3079568520).

Almost surely, 2^101121024100 is an apocalyptic number.

101121024100 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 101121024100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110864466720).

101121024100 is an abundant number, since it is smaller than the sum of its proper divisors (120607909340).

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

101121024100 is a wasteful number, since it uses less digits than its factorization.

101121024100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10597 (or 10590 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101121024100 its reverse (1420121101), we get a palindrome (102541145201).

The spelling of 101121024100 in words is "one hundred one billion, one hundred twenty-one million, twenty-four thousand, one hundred".