21110010223 has 8 divisors (see below), whose sum is σ = 21870218880. Its totient is φ = 20351953440.

The previous prime is 21110010221. The next prime is 21110010227. The reversal of 21110010223 is 32201001112.

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 21110010223 - 2¹ = 21110010221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110010221) 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 7 ways as a sum of consecutive naturals, for example, 517983 + ... + 557248.

It is an arithmetic number, because the mean of its divisors is an integer number (2733777360).

Almost surely, 2^21110010223 is an apocalyptic number.

21110010223 is a deficient number, since it is larger than the sum of its proper divisors (760208657).

21110010223 is a wasteful number, since it uses less digits than its factorization.

21110010223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075937.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21110010223 its reverse (32201001112), we get a palindrome (53311011335).

The spelling of 21110010223 in words is "twenty-one billion, one hundred ten million, ten thousand, two hundred twenty-three".