10011002120 has 32 divisors (see below), whose sum is σ = 25742577600. Its totient is φ = 3432343488.

The previous prime is 10011002119. The next prime is 10011002123. The reversal of 10011002120 is 2120011001.

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 = 10011002098 and 10011002107.

It is not an unprimeable number, because it can be changed into a prime (10011002123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17876510 + ... + 17877069.

It is an arithmetic number, because the mean of its divisors is an integer number (804455550).

Almost surely, 2^10011002120 is an apocalyptic number.

10011002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011002120 is an abundant number, since it is smaller than the sum of its proper divisors (15731575480).

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

10011002120 is a wasteful number, since it uses less digits than its factorization.

10011002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35753597 (or 35753593 counting only the distinct ones).

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

Adding to 10011002120 its reverse (2120011001), we get a palindrome (12131013121).

The spelling of 10011002120 in words is "ten billion, eleven million, two thousand, one hundred twenty".