21202001010112 has 28 divisors (see below), whose sum is σ = 45309083891176. Its totient is φ = 9785538927360.

The previous prime is 21202001010031. The next prime is 21202001010191. The reversal of 21202001010112 is 21101010020212.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 21202001010092 and 21202001010101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12741586314 + ... + 12741587977.

It is an arithmetic number, because the mean of its divisors is an integer number (1618181567542).

Almost surely, 2^{21202001010112} is an apocalyptic number.

It is an amenable number.

21202001010112 is an abundant number, since it is smaller than the sum of its proper divisors (24107082881064).

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

21202001010112 is a wasteful number, since it uses less digits than its factorization.

21202001010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25483174316 (or 25483174306 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21202001010112 its reverse (21101010020212), we get a palindrome (42303011030324).

The spelling of 21202001010112 in words is "twenty-one trillion, two hundred two billion, one million, ten thousand, one hundred twelve".