21112010112000 has 176 divisors, whose sum is σ = 70226463913632. Its totient is φ = 5629869260800.

The previous prime is 21112010111999. The next prime is 21112010112103. The reversal of 21112010112000 is 21101021112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27105597 + ... + 27873596.

Almost surely, 2^{21112010112000} is an apocalyptic number.

21112010112000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21112010112000 is an abundant number, since it is smaller than the sum of its proper divisors (49114453801632).

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

21112010112000 is an equidigital number, since it uses as much as digits as its factorization.

21112010112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54979231 (or 54979203 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21112010112000 its reverse (21101021112), we get a palindrome (21133111133112).

The spelling of 21112010112000 in words is "twenty-one trillion, one hundred twelve billion, ten million, one hundred twelve thousand".