21020333200111 has 48 divisors (see below), whose sum is σ = 24843790540800. Its totient is φ = 17731513904832.

The previous prime is 21020333200057. The next prime is 21020333200211. The reversal of 21020333200111 is 11100233302012.

It is not a de Polignac number, because 21020333200111 - 2²⁹ = 21019796329199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020333200211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 527612130 + ... + 527651968.

It is an arithmetic number, because the mean of its divisors is an integer number (517578969600).

Almost surely, 2^{21020333200111} is an apocalyptic number.

21020333200111 is a deficient number, since it is larger than the sum of its proper divisors (3823457340689).

21020333200111 is a wasteful number, since it uses less digits than its factorization.

21020333200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40628 (or 40621 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21020333200111 its reverse (11100233302012), we get a palindrome (32120566502123).

The spelling of 21020333200111 in words is "twenty-one trillion, twenty billion, three hundred thirty-three million, two hundred thousand, one hundred eleven".