21020002000112 has 60 divisors (see below), whose sum is σ = 41371494304896. Its totient is φ = 10346045149440.

The previous prime is 21020002000111. The next prime is 21020002000141. The reversal of 21020002000112 is 21100020002012.

It is a happy number.

It is a super-3 number, since 3×21020002000112³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21020002000093 and 21020002000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020002000111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105553628 + ... + 105752580.

Almost surely, 2^{21020002000112} is an apocalyptic number.

It is an amenable number.

21020002000112 is a deficient number, since it is larger than the sum of its proper divisors (20351492304784).

21020002000112 is a wasteful number, since it uses less digits than its factorization.

21020002000112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200566 (or 200493 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21020002000112 its reverse (21100020002012), we get a palindrome (42120022002124).

The spelling of 21020002000112 in words is "twenty-one trillion, twenty billion, two million, one hundred twelve", and thus it is an aban number.