12201021101000 has 32 divisors (see below), whose sum is σ = 28550389378680. Its totient is φ = 4880408440000.

The previous prime is 12201021100987. The next prime is 12201021101011. The reversal of 12201021101000 is 10112010221.

It can be written as a sum of positive squares in 4 ways, for example, as 6361906487524 + 5839114613476 = 2522282^2 + 2416426^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6100509551 + ... + 6100511550.

Almost surely, 2^{12201021101000} is an apocalyptic number.

12201021101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201021101000 is an abundant number, since it is smaller than the sum of its proper divisors (16349368277680).

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

12201021101000 is a wasteful number, since it uses less digits than its factorization.

12201021101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201021122 (or 12201021108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12201021101000 its reverse (10112010221), we get a palindrome (12211133111221).

The spelling of 12201021101000 in words is "twelve trillion, two hundred one billion, twenty-one million, one hundred one thousand".