21113200099969 has 16 divisors (see below), whose sum is σ = 22371488395776. Its totient is φ = 19856731910400.

The previous prime is 21113200099963. The next prime is 21113200100059. The reversal of 21113200099969 is 96999000231112.

It is a cyclic number.

It is not a de Polignac number, because 21113200099969 - 2⁹ = 21113200099457 is a prime.

It is a super-2 number, since 2×21113200099969² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113200099963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138406399 + ... + 138558859.

It is an arithmetic number, because the mean of its divisors is an integer number (1398218024736).

Almost surely, 2^{21113200099969} is an apocalyptic number.

It is an amenable number.

21113200099969 is a deficient number, since it is larger than the sum of its proper divisors (1258288295807).

21113200099969 is a wasteful number, since it uses less digits than its factorization.

21113200099969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158376.

The product of its (nonzero) digits is 472392, while the sum is 52.

The spelling of 21113200099969 in words is "twenty-one trillion, one hundred thirteen billion, two hundred million, ninety-nine thousand, nine hundred sixty-nine".