12201543000 has 128 divisors (see below), whose sum is σ = 42298776000. Its totient is φ = 3253737600.

The previous prime is 12201542999. The next prime is 12201543001. The reversal of 12201543000 is 34510221.

12201543000 is a `hidden beast` number, since 1 + 220 + 15 + 430 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12201542999) and next prime (12201543001).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201543001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198955 + ... + 252954.

Almost surely, 2^12201543000 is an apocalyptic number.

12201543000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201543000 is an abundant number, since it is smaller than the sum of its proper divisors (30097233000).

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

12201543000 is a wasteful number, since it uses less digits than its factorization.

12201543000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451939 (or 451919 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The spelling of 12201543000 in words is "twelve billion, two hundred one million, five hundred forty-three thousand".