10021131200 has 42 divisors (see below), whose sum is σ = 24658249896. Its totient is φ = 4008451840.

The previous prime is 10021131193. The next prime is 10021131227. The reversal of 10021131200 is 213112001.

It is a super-2 number, since 2×10021131200² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3130004 + ... + 3133203.

It is an arithmetic number, because the mean of its divisors is an integer number (587101188).

Almost surely, 2^10021131200 is an apocalyptic number.

10021131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021131200 is an abundant number, since it is smaller than the sum of its proper divisors (14637118696).

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

10021131200 is an equidigital number, since it uses as much as digits as its factorization.

10021131200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263229 (or 6263214 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10021131200 its reverse (213112001), we get a palindrome (10234243201).

The spelling of 10021131200 in words is "ten billion, twenty-one million, one hundred thirty-one thousand, two hundred".