21410400211 has 4 divisors (see below), whose sum is σ = 22537263400. Its totient is φ = 20283537024.

The previous prime is 21410400199. The next prime is 21410400223. The reversal of 21410400211 is 11200401412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (21410400199) and next prime (21410400223).

It is a cyclic number.

It is not a de Polignac number, because 21410400211 - 2¹⁹ = 21409875923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21410400251) 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 3 ways as a sum of consecutive naturals, for example, 563431566 + ... + 563431603.

It is an arithmetic number, because the mean of its divisors is an integer number (5634315850).

Almost surely, 2^21410400211 is an apocalyptic number.

21410400211 is a deficient number, since it is larger than the sum of its proper divisors (1126863189).

21410400211 is a wasteful number, since it uses less digits than its factorization.

21410400211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126863188.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21410400211 its reverse (11200401412), we get a palindrome (32610801623).

The spelling of 21410400211 in words is "twenty-one billion, four hundred ten million, four hundred thousand, two hundred eleven".