21320211101110 has 16 divisors (see below), whose sum is σ = 38381497650000. Its totient is φ = 8526947180896.

The previous prime is 21320211101011. The next prime is 21320211101143. The reversal of 21320211101110 is 1110111202312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142078705 + ... + 142228684.

It is an arithmetic number, because the mean of its divisors is an integer number (2398843603125).

Almost surely, 2^{21320211101110} is an apocalyptic number.

21320211101110 is a deficient number, since it is larger than the sum of its proper divisors (17061286548890).

21320211101110 is a wasteful number, since it uses less digits than its factorization.

21320211101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284314895.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 21320211101110 its reverse (1110111202312), we get a palindrome (22430322303422).

The spelling of 21320211101110 in words is "twenty-one trillion, three hundred twenty billion, two hundred eleven million, one hundred one thousand, one hundred ten".