21112010020010 has 64 divisors (see below), whose sum is σ = 46772005996800. Its totient is φ = 6681491200512.

The previous prime is 21112010020009. The next prime is 21112010020039. The reversal of 21112010020010 is 1002001021112.

It is a junction number, because it is equal to n+sod(n) for n = 21112010019973 and 21112010020000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66826601 + ... + 67141779.

It is an arithmetic number, because the mean of its divisors is an integer number (730812593700).

Almost surely, 2^{21112010020010} is an apocalyptic number.

21112010020010 is an abundant number, since it is smaller than the sum of its proper divisors (25659995976790).

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

21112010020010 is a wasteful number, since it uses less digits than its factorization.

21112010020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388815.

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

Adding to 21112010020010 its reverse (1002001021112), we get a palindrome (22114011041122).

The spelling of 21112010020010 in words is "twenty-one trillion, one hundred twelve billion, ten million, twenty thousand, ten".