32121201001 has 2 divisors, whose sum is σ = 32121201002. Its totient is φ = 32121201000.

The previous prime is 32121200989. The next prime is 32121201043. The reversal of 32121201001 is 10010212123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16769991001 + 15351210000 = 129499^2 + 123900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32121201001 is a prime.

It is not a weakly prime, because it can be changed into another prime (32121201071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060600500 + 16060600501.

It is an arithmetic number, because the mean of its divisors is an integer number (16060600501).

Almost surely, 2^32121201001 is an apocalyptic number.

It is an amenable number.

32121201001 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121201001 is an equidigital number, since it uses as much as digits as its factorization.

32121201001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 32121201001 its reverse (10010212123), we get a palindrome (42131413124).

The spelling of 32121201001 in words is "thirty-two billion, one hundred twenty-one million, two hundred one thousand, one".