20233111000221 has 96 divisors (see below), whose sum is σ = 37234026086400. Its totient is φ = 10306945958400.

The previous prime is 20233111000181. The next prime is 20233111000231. The reversal of 20233111000221 is 12200011133202.

20233111000221 is a `hidden beast` number, since 2 + 0 + 2 + 331 + 110 + 0 + 0 + 221 = 666.

It is not a de Polignac number, because 20233111000221 - 2¹⁰ = 20233110999197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20233111000194 and 20233111000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233111000231) 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 95 ways as a sum of consecutive naturals, for example, 107328196 + ... + 107516546.

It is an arithmetic number, because the mean of its divisors is an integer number (387854438400).

Almost surely, 2^{20233111000221} is an apocalyptic number.

20233111000221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20233111000221 is a deficient number, since it is larger than the sum of its proper divisors (17000915086179).

20233111000221 is a wasteful number, since it uses less digits than its factorization.

20233111000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193679 (or 193676 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20233111000221 its reverse (12200011133202), we get a palindrome (32433122133423).

The spelling of 20233111000221 in words is "twenty trillion, two hundred thirty-three billion, one hundred eleven million, two hundred twenty-one", and thus it is an aban number.