21106775110 has 8 divisors (see below), whose sum is σ = 37992195216. Its totient is φ = 8442710040.

The previous prime is 21106775101. The next prime is 21106775111. The reversal of 21106775110 is 1157760112.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21106775111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055338746 + ... + 1055338765.

It is an arithmetic number, because the mean of its divisors is an integer number (4749024402).

Almost surely, 2^21106775110 is an apocalyptic number.

21106775110 is a deficient number, since it is larger than the sum of its proper divisors (16885420106).

21106775110 is a wasteful number, since it uses less digits than its factorization.

21106775110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110677518.

The product of its (nonzero) digits is 2940, while the sum is 31.

The spelling of 21106775110 in words is "twenty-one billion, one hundred six million, seven hundred seventy-five thousand, one hundred ten".