21126160207 has 8 divisors (see below), whose sum is σ = 21885494400. Its totient is φ = 20368882464.

The previous prime is 21126160201. The next prime is 21126160217. The reversal of 21126160207 is 70206162112.

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 21126160207 - 2³ = 21126160199 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 (21126160201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493183 + ... + 534304.

It is an arithmetic number, because the mean of its divisors is an integer number (2735686800).

Almost surely, 2^21126160207 is an apocalyptic number.

21126160207 is a deficient number, since it is larger than the sum of its proper divisors (759334193).

21126160207 is a wasteful number, since it uses less digits than its factorization.

21126160207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028225.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 21126160207 in words is "twenty-one billion, one hundred twenty-six million, one hundred sixty thousand, two hundred seven".