21200132001 has 8 divisors (see below), whose sum is σ = 28269259200. Its totient is φ = 14132213072.

The previous prime is 21200131973. The next prime is 21200132029. The reversal of 21200132001 is 10023100212.

It is an interprime number because it is at equal distance from previous prime (21200131973) and next prime (21200132029).

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 21200132001 - 2⁶ = 21200131937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21200132201) 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, 260301 + ... + 331898.

It is an arithmetic number, because the mean of its divisors is an integer number (3533657400).

Almost surely, 2^21200132001 is an apocalyptic number.

It is an amenable number.

21200132001 is a deficient number, since it is larger than the sum of its proper divisors (7069127199).

21200132001 is a wasteful number, since it uses less digits than its factorization.

21200132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604135.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21200132001 its reverse (10023100212), we get a palindrome (31223232213).

The spelling of 21200132001 in words is "twenty-one billion, two hundred million, one hundred thirty-two thousand, one".