12201211000 has 128 divisors (see below), whose sum is σ = 32786208000. Its totient is φ = 4203216000.

The previous prime is 12201210997. The next prime is 12201211003. The reversal of 12201211000 is 11210221.

It is an interprime number because it is at equal distance from previous prime (12201210997) and next prime (12201211003).

It is a super-3 number, since 3×12201211000³ (a number of 31 digits) contains 333 as substring.

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 (12201211003) 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, 179811 + ... + 238189.

It is an arithmetic number, because the mean of its divisors is an integer number (256142250).

Almost surely, 2^12201211000 is an apocalyptic number.

12201211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16393104000).

12201211000 is an abundant number, since it is smaller than the sum of its proper divisors (20584997000).

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

12201211000 is a wasteful number, since it uses less digits than its factorization.

12201211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58430 (or 58416 counting only the distinct ones).

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

Adding to 12201211000 its reverse (11210221), we get a palindrome (12212421221).

The spelling of 12201211000 in words is "twelve billion, two hundred one million, two hundred eleven thousand".