10001100920 has 16 divisors (see below), whose sum is σ = 22502477160. Its totient is φ = 4000440352.

The previous prime is 10001100899. The next prime is 10001100937. The reversal of 10001100920 is 2900110001.

It is a super-2 number, since 2×10001100920² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001100895 and 10001100904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125013722 + ... + 125013801.

Almost surely, 2^10001100920 is an apocalyptic number.

10001100920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001100920 is an abundant number, since it is smaller than the sum of its proper divisors (12501376240).

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

10001100920 is a wasteful number, since it uses less digits than its factorization.

10001100920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250027534 (or 250027530 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10001100920 its reverse (2900110001), we get a palindrome (12901210921).

The spelling of 10001100920 in words is "ten billion, one million, one hundred thousand, nine hundred twenty".