21022020230211 has 96 divisors (see below), whose sum is σ = 40772955944448. Its totient is φ = 10079753080320.

The previous prime is 21022020230153. The next prime is 21022020230213. The reversal of 21022020230211 is 11203202022012.

21022020230211 is a `hidden beast` number, since 2 + 1 + 0 + 220 + 2 + 0 + 230 + 211 = 666.

It is not a de Polignac number, because 21022020230211 - 2¹³ = 21022020222019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022020230213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 135210460 + ... + 135365846.

It is an arithmetic number, because the mean of its divisors is an integer number (424718291088).

Almost surely, 2^{21022020230211} is an apocalyptic number.

21022020230211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21022020230211 is a deficient number, since it is larger than the sum of its proper divisors (19750935714237).

21022020230211 is a wasteful number, since it uses less digits than its factorization.

21022020230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170441 (or 170438 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21022020230211 its reverse (11203202022012), we get a palindrome (32225222252223).

The spelling of 21022020230211 in words is "twenty-one trillion, twenty-two billion, twenty million, two hundred thirty thousand, two hundred eleven".