21112000000102 has 16 divisors (see below), whose sum is σ = 34574349096000. Its totient is φ = 9588741412840.

The previous prime is 21112000000097. The next prime is 21112000000103. The reversal of 21112000000102 is 20100000021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112000000103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 381082852 + ... + 381138247.

It is an arithmetic number, because the mean of its divisors is an integer number (2160896818500).

Almost surely, 2^{21112000000102} is an apocalyptic number.

21112000000102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21112000000102 is a deficient number, since it is larger than the sum of its proper divisors (13462349095898).

21112000000102 is a wasteful number, since it uses less digits than its factorization.

21112000000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762222371.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21112000000102 its reverse (20100000021112), we get a palindrome (41212000021214).

The spelling of 21112000000102 in words is "twenty-one trillion, one hundred twelve billion, one hundred two", and thus it is an aban number.