21200033211 has 32 divisors (see below), whose sum is σ = 33105945600. Its totient is φ = 12062175552.

The previous prime is 21200033189. The next prime is 21200033213. The reversal of 21200033211 is 11233000212.

It is not a de Polignac number, because 21200033211 - 2¹³ = 21200025019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200033213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195546 + ... + 283968.

It is an arithmetic number, because the mean of its divisors is an integer number (1034560800).

Almost surely, 2^21200033211 is an apocalyptic number.

21200033211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21200033211 is a deficient number, since it is larger than the sum of its proper divisors (11905912389).

21200033211 is an equidigital number, since it uses as much as digits as its factorization.

21200033211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88680 (or 88666 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21200033211 its reverse (11233000212), we get a palindrome (32433033423).

The spelling of 21200033211 in words is "twenty-one billion, two hundred million, thirty-three thousand, two hundred eleven".