12020001100 has 18 divisors (see below), whose sum is σ = 26083402604. Its totient is φ = 4808000400.

The previous prime is 12020001073. The next prime is 12020001109. The reversal of 12020001100 is 110002021.

It is not an unprimeable number, because it can be changed into a prime (12020001109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60099906 + ... + 60100105.

Almost surely, 2^12020001100 is an apocalyptic number.

12020001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020001100 is an abundant number, since it is smaller than the sum of its proper divisors (14063401504).

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

12020001100 is a wasteful number, since it uses less digits than its factorization.

12020001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120200025 (or 120200018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12020001100 its reverse (110002021), we get a palindrome (12130003121).

The spelling of 12020001100 in words is "twelve billion, twenty million, one thousand, one hundred".