21430012201 has 32 divisors (see below), whose sum is σ = 25886770560. Its totient is φ = 17525154816.

The previous prime is 21430012187. The next prime is 21430012207. The reversal of 21430012201 is 10221003412.

It is not a de Polignac number, because 21430012201 - 2¹³ = 21430004009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21430012207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642990 + ... + 675496.

It is an arithmetic number, because the mean of its divisors is an integer number (808961580).

Almost surely, 2^21430012201 is an apocalyptic number.

It is an amenable number.

21430012201 is a deficient number, since it is larger than the sum of its proper divisors (4456758359).

21430012201 is a wasteful number, since it uses less digits than its factorization.

21430012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32713.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21430012201 its reverse (10221003412), we get a palindrome (31651015613).

The spelling of 21430012201 in words is "twenty-one billion, four hundred thirty million, twelve thousand, two hundred one".