21300021113211 has 24 divisors (see below), whose sum is σ = 31599620607984. Its totient is φ = 13815621662400.

The previous prime is 21300021113209. The next prime is 21300021113221. The reversal of 21300021113211 is 11231112000312.

21300021113211 is a `hidden beast` number, since 2 + 130 + 0 + 0 + 211 + 1 + 321 + 1 = 666.

It is not a de Polignac number, because 21300021113211 - 2¹ = 21300021113209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21300021113221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6229500 + ... + 9022566.

It is an arithmetic number, because the mean of its divisors is an integer number (1316650858666).

Almost surely, 2^{21300021113211} is an apocalyptic number.

21300021113211 is a deficient number, since it is larger than the sum of its proper divisors (10299599494773).

21300021113211 is a wasteful number, since it uses less digits than its factorization.

21300021113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816011 (or 2816008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21300021113211 its reverse (11231112000312), we get a palindrome (32531133113523).

The spelling of 21300021113211 in words is "twenty-one trillion, three hundred billion, twenty-one million, one hundred thirteen thousand, two hundred eleven".