20120012201 has 2 divisors, whose sum is σ = 20120012202. Its totient is φ = 20120012200.

The previous prime is 20120012173. The next prime is 20120012207. The reversal of 20120012201 is 10221002102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10584294400 + 9535717801 = 102880^2 + 97651^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120012201 - 2²⁶ = 20052903337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20120012207) 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 as a sum of consecutive naturals, namely, 10060006100 + 10060006101.

It is an arithmetic number, because the mean of its divisors is an integer number (10060006101).

Almost surely, 2^20120012201 is an apocalyptic number.

It is an amenable number.

20120012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120012201 is an equidigital number, since it uses as much as digits as its factorization.

20120012201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20120012201 its reverse (10221002102), we get a palindrome (30341014303).

The spelling of 20120012201 in words is "twenty billion, one hundred twenty million, twelve thousand, two hundred one".