10001099120 has 40 divisors (see below), whose sum is σ = 23295636960. Its totient is φ = 3993027840.

The previous prime is 10001099111. The next prime is 10001099137. The reversal of 10001099120 is 2199010001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72260 + ... + 158819.

It is an arithmetic number, because the mean of its divisors is an integer number (582390924).

Almost surely, 2^10001099120 is an apocalyptic number.

10001099120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001099120 is an abundant number, since it is smaller than the sum of its proper divisors (13294537840).

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

10001099120 is a wasteful number, since it uses less digits than its factorization.

10001099120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231633 (or 231627 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 10001099120 in words is "ten billion, one million, ninety-nine thousand, one hundred twenty".