10021231123200 has 648 divisors, whose sum is σ = 39334609934256. Its totient is φ = 2413891584000.

The previous prime is 10021231123181. The next prime is 10021231123201. The reversal of 10021231123200 is 232113212001.

10021231123200 is a `hidden beast` number, since 10 + 0 + 21 + 2 + 311 + 2 + 320 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (10021231123201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99424830 + ... + 99525570.

Almost surely, 2^{10021231123200} is an apocalyptic number.

10021231123200 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 10021231123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19667304967128).

10021231123200 is an abundant number, since it is smaller than the sum of its proper divisors (29313378811056).

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

10021231123200 is a wasteful number, since it uses less digits than its factorization.

10021231123200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100941 (or 100919 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10021231123200 its reverse (232113212001), we get a palindrome (10253344335201).

The spelling of 10021231123200 in words is "ten trillion, twenty-one billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred".