21102032321211 has 32 divisors (see below), whose sum is σ = 28637493115392. Its totient is φ = 13818926350080.

The previous prime is 21102032321171. The next prime is 21102032321219. The reversal of 21102032321211 is 11212323020112.

It is a de Polignac number, because none of the positive numbers 2^k-21102032321211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21102032321219) 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, 98903116 + ... + 99116246.

It is an arithmetic number, because the mean of its divisors is an integer number (894921659856).

Almost surely, 2^{21102032321211} is an apocalyptic number.

21102032321211 is a deficient number, since it is larger than the sum of its proper divisors (7535460794181).

21102032321211 is a wasteful number, since it uses less digits than its factorization.

21102032321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215043.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21102032321211 its reverse (11212323020112), we get a palindrome (32314355341323).

The spelling of 21102032321211 in words is "twenty-one trillion, one hundred two billion, thirty-two million, three hundred twenty-one thousand, two hundred eleven".