21010010112212 has 12 divisors (see below), whose sum is σ = 40110019305216. Its totient is φ = 9550004596440.

The previous prime is 21010010112197. The next prime is 21010010112229. The reversal of 21010010112212 is 21221101001012.

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, 238750114868 + ... + 238750114955.

It is an arithmetic number, because the mean of its divisors is an integer number (3342501608768).

Almost surely, 2^{21010010112212} is an apocalyptic number.

21010010112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21010010112212 is a deficient number, since it is larger than the sum of its proper divisors (19100009193004).

21010010112212 is a wasteful number, since it uses less digits than its factorization.

21010010112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477500229838 (or 477500229836 counting only the distinct ones).

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

Adding to 21010010112212 its reverse (21221101001012), we get a palindrome (42231111113224).

The spelling of 21010010112212 in words is "twenty-one trillion, ten billion, ten million, one hundred twelve thousand, two hundred twelve".