21103212332011 has 8 divisors (see below), whose sum is σ = 22119491036160. Its totient is φ = 20095162605672.

The previous prime is 21103212331987. The next prime is 21103212332089. The reversal of 21103212332011 is 11023321230112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21103212332011 - 2⁹ = 21103212331499 is a prime.

It is a super-2 number, since 2×21103212332011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21103218332011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057239201 + ... + 2057249458.

It is an arithmetic number, because the mean of its divisors is an integer number (2764936379520).

Almost surely, 2^{21103212332011} is an apocalyptic number.

21103212332011 is a deficient number, since it is larger than the sum of its proper divisors (1016278704149).

21103212332011 is a wasteful number, since it uses less digits than its factorization.

21103212332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114488905.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21103212332011 its reverse (11023321230112), we get a palindrome (32126533562123).

The spelling of 21103212332011 in words is "twenty-one trillion, one hundred three billion, two hundred twelve million, three hundred thirty-two thousand, eleven".