21010210112012 has 24 divisors (see below), whose sum is σ = 40111651077120. Its totient is φ = 9549797897360.

The previous prime is 21010210111967. The next prime is 21010210112063. The reversal of 21010210112012 is 21021101201012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6009128 + ... + 8839119.

It is an arithmetic number, because the mean of its divisors is an integer number (1671318794880).

Almost surely, 2^{21010210112012} is an apocalyptic number.

21010210112012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21010210112012 is a deficient number, since it is larger than the sum of its proper divisors (19101440965108).

21010210112012 is a wasteful number, since it uses less digits than its factorization.

21010210112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14880421 (or 14880419 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21010210112012 its reverse (21021101201012), we get a palindrome (42031311313024).

The spelling of 21010210112012 in words is "twenty-one trillion, ten billion, two hundred ten million, one hundred twelve thousand, twelve".