21312210110 has 8 divisors (see below), whose sum is σ = 38361978216. Its totient is φ = 8524884040.

The previous prime is 21312210109. The next prime is 21312210133. The reversal of 21312210110 is 1101221312.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065610496 + ... + 1065610515.

It is an arithmetic number, because the mean of its divisors is an integer number (4795247277).

Almost surely, 2^21312210110 is an apocalyptic number.

21312210110 is a deficient number, since it is larger than the sum of its proper divisors (17049768106).

21312210110 is a wasteful number, since it uses less digits than its factorization.

21312210110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131221018.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21312210110 its reverse (1101221312), we get a palindrome (22413431422).

The spelling of 21312210110 in words is "twenty-one billion, three hundred twelve million, two hundred ten thousand, one hundred ten".