21000201210112 has 72 divisors (see below), whose sum is σ = 44455865580000. Its totient is φ = 9866481180672.

The previous prime is 21000201210101. The next prime is 21000201210133. The reversal of 21000201210112 is 21101210200012.

It is a junction number, because it is equal to n+sod(n) for n = 21000201210092 and 21000201210101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203862 + ... + 6591637.

It is an arithmetic number, because the mean of its divisors is an integer number (617442577500).

Almost surely, 2^{21000201210112} is an apocalyptic number.

It is an amenable number.

21000201210112 is an abundant number, since it is smaller than the sum of its proper divisors (23455664369888).

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

21000201210112 is an equidigital number, since it uses as much as digits as its factorization.

21000201210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796151 (or 7796137 counting only the distinct ones).

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

Adding to 21000201210112 its reverse (21101210200012), we get a palindrome (42101411410124).

The spelling of 21000201210112 in words is "twenty-one trillion, two hundred one million, two hundred ten thousand, one hundred twelve".