12111202000 has 80 divisors (see below), whose sum is σ = 30558258432. Its totient is φ = 4633833600.

The previous prime is 12111201997. The next prime is 12111202001. The reversal of 12111202000 is 20211121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111202001) 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, 85644 + ... + 177643.

Almost surely, 2^12111202000 is an apocalyptic number.

12111202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111202000 is an abundant number, since it is smaller than the sum of its proper divisors (18447056432).

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

12111202000 is a wasteful number, since it uses less digits than its factorization.

12111202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263333 (or 263317 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12111202000 its reverse (20211121), we get a palindrome (12131413121).

The spelling of 12111202000 in words is "twelve billion, one hundred eleven million, two hundred two thousand".