21033333100011 has 4 divisors (see below), whose sum is σ = 28044444133352. Its totient is φ = 14022222066672.

The previous prime is 21033333099997. The next prime is 21033333100019. The reversal of 21033333100011 is 11000133333012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21033333100011 - 2¹³ = 21033333091819 is a prime.

It is a super-2 number, since 2×21033333100011² (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 (21033333100019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3505555516666 + ... + 3505555516671.

It is an arithmetic number, because the mean of its divisors is an integer number (7011111033338).

Almost surely, 2^{21033333100011} is an apocalyptic number.

21033333100011 is a deficient number, since it is larger than the sum of its proper divisors (7011111033341).

21033333100011 is an equidigital number, since it uses as much as digits as its factorization.

21033333100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7011111033340.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 21033333100011 its reverse (11000133333012), we get a palindrome (32033466433023).

The spelling of 21033333100011 in words is "twenty-one trillion, thirty-three billion, three hundred thirty-three million, one hundred thousand, eleven".