21214036430001 has 20 divisors (see below), whose sum is σ = 32163090434992. Its totient is φ = 13931606010168.

The previous prime is 21214036429997. The next prime is 21214036430089. The reversal of 21214036430001 is 10003463041212.

It is a happy number.

21214036430001 is a `hidden beast` number, since 2 + 1 + 2 + 14 + 0 + 3 + 643 + 0 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 21214036430001 - 2² = 21214036429997 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 not an unprimeable number, because it can be changed into a prime (21214036430101) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1954484755 + ... + 1954495608.

Almost surely, 2^{21214036430001} is an apocalyptic number.

It is an amenable number.

21214036430001 is a deficient number, since it is larger than the sum of its proper divisors (10949054004991).

21214036430001 is an equidigital number, since it uses as much as digits as its factorization.

21214036430001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908980442 (or 3908980433 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 21214036430001 its reverse (10003463041212), we get a palindrome (31217499471213).

The spelling of 21214036430001 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, four hundred thirty thousand, one".