21010200001112 has 64 divisors (see below), whose sum is σ = 45243119592000. Its totient is φ = 8960226508800.

The previous prime is 21010200001111. The next prime is 21010200001117. The reversal of 21010200001112 is 21110000201012.

It is a junction number, because it is equal to n+sod(n) for n = 21010200001093 and 21010200001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010200001111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8258612 + ... + 10498812.

It is an arithmetic number, because the mean of its divisors is an integer number (706923743625).

Almost surely, 2^{21010200001112} is an apocalyptic number.

It is an amenable number.

21010200001112 is an abundant number, since it is smaller than the sum of its proper divisors (24232919590888).

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

21010200001112 is a wasteful number, since it uses less digits than its factorization.

21010200001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241036 (or 2241032 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21010200001112 its reverse (21110000201012), we get a palindrome (42120200202124).

The spelling of 21010200001112 in words is "twenty-one trillion, ten billion, two hundred million, one thousand, one hundred twelve".