21010011002112 has 144 divisors (see below), whose sum is σ = 61604626345920. Its totient is φ = 6303633408000.

The previous prime is 21010011002063. The next prime is 21010011002137. The reversal of 21010011002112 is 21120011001012.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11458537 + ... + 13165032.

It is an arithmetic number, because the mean of its divisors is an integer number (427809905180).

Almost surely, 2^{21010011002112} is an apocalyptic number.

21010011002112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21010011002112 is an abundant number, since it is smaller than the sum of its proper divisors (40594615343808).

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

21010011002112 is a wasteful number, since it uses less digits than its factorization.

21010011002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24623700 (or 24623686 counting only the distinct ones).

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

Adding to 21010011002112 its reverse (21120011001012), we get a palindrome (42130022003124).

The spelling of 21010011002112 in words is "twenty-one trillion, ten billion, eleven million, two thousand, one hundred twelve".