12001102000 has 40 divisors (see below), whose sum is σ = 29018669472. Its totient is φ = 4800440000.

The previous prime is 12001101971. The next prime is 12001102007. The reversal of 12001102000 is 20110021.

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

It is not an unprimeable number, because it can be changed into a prime (12001102007) 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, 2998276 + ... + 3002275.

Almost surely, 2^12001102000 is an apocalyptic number.

12001102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001102000 is an abundant number, since it is smaller than the sum of its proper divisors (17017567472).

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

12001102000 is an equidigital number, since it uses as much as digits as its factorization.

12001102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000574 (or 6000558 counting only the distinct ones).

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

Adding to 12001102000 its reverse (20110021), we get a palindrome (12021212021).

The spelling of 12001102000 in words is "twelve billion, one million, one hundred two thousand".