21223401321141 has 12 divisors (see below), whose sum is σ = 31791432432032. Its totient is φ = 14148934213932.

The previous prime is 21223401321079. The next prime is 21223401321167. The reversal of 21223401321141 is 14112310432212.

21223401321141 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 3 + 401 + 3 + 211 + 41 = 666.

It is not a de Polignac number, because 21223401321141 - 2⁹ = 21223401320629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223401328141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43669549801 + ... + 43669550286.

Almost surely, 2^{21223401321141} is an apocalyptic number.

It is an amenable number.

21223401321141 is a deficient number, since it is larger than the sum of its proper divisors (10568031110891).

21223401321141 is an frugal number, since it uses more digits than its factorization.

21223401321141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87339100102 (or 87339100090 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 21223401321141 its reverse (14112310432212), we get a palindrome (35335711753353).

The spelling of 21223401321141 in words is "twenty-one trillion, two hundred twenty-three billion, four hundred one million, three hundred twenty-one thousand, one hundred forty-one".