201212203001 has 2 divisors, whose sum is σ = 201212203002. Its totient is φ = 201212203000.

The previous prime is 201212202991. The next prime is 201212203009. The reversal of 201212203001 is 100302212102.

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., 175289592976 + 25922610025 = 418676^2 + 161005^2 .

It is a cyclic number.

It is not a de Polignac number, because 201212203001 - 2⁶ = 201212202937 is a prime.

It is not a weakly prime, because it can be changed into another prime (201212203009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606101500 + 100606101501.

It is an arithmetic number, because the mean of its divisors is an integer number (100606101501).

Almost surely, 2^201212203001 is an apocalyptic number.

It is an amenable number.

201212203001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201212203001 is an equidigital number, since it uses as much as digits as its factorization.

201212203001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201212203001 its reverse (100302212102), we get a palindrome (301514415103).

The spelling of 201212203001 in words is "two hundred one billion, two hundred twelve million, two hundred three thousand, one".