12100011020 has 48 divisors (see below), whose sum is σ = 26322408000. Its totient is φ = 4668871680.

The previous prime is 12100011019. The next prime is 12100011023. The reversal of 12100011020 is 2011000121.

It is a junction number, because it is equal to n+sod(n) for n = 12100010989 and 12100011007.

It is not an unprimeable number, because it can be changed into a prime (12100011023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9920 + ... + 155879.

It is an arithmetic number, because the mean of its divisors is an integer number (548383500).

Almost surely, 2^12100011020 is an apocalyptic number.

12100011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100011020 is an abundant number, since it is smaller than the sum of its proper divisors (14222396980).

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

12100011020 is a wasteful number, since it uses less digits than its factorization.

12100011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165938 (or 165936 counting only the distinct ones).

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

Adding to 12100011020 its reverse (2011000121), we get a palindrome (14111011141).

The spelling of 12100011020 in words is "twelve billion, one hundred million, eleven thousand, twenty".