21004267211 has 8 divisors (see below), whose sum is σ = 21364061040. Its totient is φ = 20644599808.

The previous prime is 21004267201. The next prime is 21004267213. The reversal of 21004267211 is 11276240012.

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 21004267211 - 2³⁰ = 19930525387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21004267213) 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, 340715 + ... + 397611.

It is an arithmetic number, because the mean of its divisors is an integer number (2670507630).

Almost surely, 2^21004267211 is an apocalyptic number.

21004267211 is a deficient number, since it is larger than the sum of its proper divisors (359793829).

21004267211 is an equidigital number, since it uses as much as digits as its factorization.

21004267211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63213.

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 21004267211 in words is "twenty-one billion, four million, two hundred sixty-seven thousand, two hundred eleven".