21200000213 has 16 divisors (see below), whose sum is σ = 24512132736. Its totient is φ = 17959993920.

The previous prime is 21200000141. The next prime is 21200000219. The reversal of 21200000213 is 31200000212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21200000213 - 2¹⁴ = 21199983829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21200000194 and 21200000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200000219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155195 + ... + 257847.

It is an arithmetic number, because the mean of its divisors is an integer number (1532008296).

Almost surely, 2^21200000213 is an apocalyptic number.

It is an amenable number.

21200000213 is a deficient number, since it is larger than the sum of its proper divisors (3312132523).

21200000213 is a wasteful number, since it uses less digits than its factorization.

21200000213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103004.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21200000213 its reverse (31200000212), we get a palindrome (52400000425).

Subtracting 21200000213 from its reverse (31200000212), we obtain a palindrome (9999999999).

The spelling of 21200000213 in words is "twenty-one billion, two hundred million, two hundred thirteen", and thus it is an aban number.