21230200100212 has 12 divisors (see below), whose sum is σ = 37289945565376. Its totient is φ = 10575929938680.

The previous prime is 21230200100129. The next prime is 21230200100231. The reversal of 21230200100212 is 21200100203212.

It is a happy number.

It is a super-2 number, since 2×21230200100212² (a number of 27 digits) contains 22 as substring.

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, 9792526638 + ... + 9792528805.

Almost surely, 2^{21230200100212} is an apocalyptic number.

It is an amenable number.

21230200100212 is a deficient number, since it is larger than the sum of its proper divisors (16059745465164).

21230200100212 is a wasteful number, since it uses less digits than its factorization.

21230200100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19585055718 (or 19585055716 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21230200100212 its reverse (21200100203212), we get a palindrome (42430300303424).

The spelling of 21230200100212 in words is "twenty-one trillion, two hundred thirty billion, two hundred million, one hundred thousand, two hundred twelve".