21223400432411 has 8 divisors (see below), whose sum is σ = 21540520246080. Its totient is φ = 20906290990728.

The previous prime is 21223400432389. The next prime is 21223400432447. The reversal of 21223400432411 is 11423400432212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21223400432411 - 2²⁶ = 21223333323547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223400432461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579820 + ... + 6703926.

It is an arithmetic number, because the mean of its divisors is an integer number (2692565030760).

Almost surely, 2^{21223400432411} is an apocalyptic number.

21223400432411 is a deficient number, since it is larger than the sum of its proper divisors (317119813669).

21223400432411 is an equidigital number, since it uses as much as digits as its factorization.

21223400432411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185993.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21223400432411 its reverse (11423400432212), we get a palindrome (32646800864623).

The spelling of 21223400432411 in words is "twenty-one trillion, two hundred twenty-three billion, four hundred million, four hundred thirty-two thousand, four hundred eleven".