10021111112200 has 96 divisors (see below), whose sum is σ = 23885895033000. Its totient is φ = 3907639500800.

The previous prime is 10021111112191. The next prime is 10021111112237. The reversal of 10021111112200 is 221111112001.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 617553935716 + 9403557176484 = 785846^2 + 3066522^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10095756 + ... + 11043844.

Almost surely, 2^{10021111112200} is an apocalyptic number.

10021111112200 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 10021111112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11942947516500).

10021111112200 is an abundant number, since it is smaller than the sum of its proper divisors (13864783920800).

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

10021111112200 is a wasteful number, since it uses less digits than its factorization.

10021111112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949435 (or 949426 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10021111112200 its reverse (221111112001), we get a palindrome (10242222224201).

The spelling of 10021111112200 in words is "ten trillion, twenty-one billion, one hundred eleven million, one hundred twelve thousand, two hundred".