21230212221241 has 16 divisors (see below), whose sum is σ = 22167788669056. Its totient is φ = 20312851147776.

The previous prime is 21230212221223. The next prime is 21230212221293. The reversal of 21230212221241 is 14212221203212.

It is a cyclic number.

It is not a de Polignac number, because 21230212221241 - 2¹¹ = 21230212219193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21230212221341) 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 15 ways as a sum of consecutive naturals, for example, 5990781 + ... + 8851546.

It is an arithmetic number, because the mean of its divisors is an integer number (1385486791816).

Almost surely, 2^{21230212221241} is an apocalyptic number.

It is an amenable number.

21230212221241 is a deficient number, since it is larger than the sum of its proper divisors (937576447815).

21230212221241 is a wasteful number, since it uses less digits than its factorization.

21230212221241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14843008.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21230212221241 its reverse (14212221203212), we get a palindrome (35442433424453).

The spelling of 21230212221241 in words is "twenty-one trillion, two hundred thirty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred forty-one".