21020210000112 has 40 divisors (see below), whose sum is σ = 54302647619920. Its totient is φ = 7006680092160.

The previous prime is 21020210000059. The next prime is 21020210000113. The reversal of 21020210000112 is 21100001202012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020210000113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4465314 + ... + 7872702.

It is an arithmetic number, because the mean of its divisors is an integer number (1357566190498).

Almost surely, 2^{21020210000112} is an apocalyptic number.

It is an amenable number.

21020210000112 is an abundant number, since it is smaller than the sum of its proper divisors (33282437619808).

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

21020210000112 is a wasteful number, since it uses less digits than its factorization.

21020210000112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535921 (or 3535915 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21020210000112 its reverse (21100001202012), we get a palindrome (42120211202124).

The spelling of 21020210000112 in words is "twenty-one trillion, twenty billion, two hundred ten million, one hundred twelve", and thus it is an aban number.