21030200212 has 12 divisors (see below), whose sum is σ = 42060400480. Its totient is φ = 9012942936.

The previous prime is 21030200153. The next prime is 21030200221. The reversal of 21030200212 is 21200203012.

21030200212 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21030200192 and 21030200201.

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, 375539262 + ... + 375539317.

Almost surely, 2^21030200212 is an apocalyptic number.

It is an amenable number.

21030200212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21030200212 is a wasteful number, since it uses less digits than its factorization.

21030200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751078590 (or 751078588 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21030200212 its reverse (21200203012), we get a palindrome (42230403224).

The spelling of 21030200212 in words is "twenty-one billion, thirty million, two hundred thousand, two hundred twelve".