1212002201 has 2 divisors, whose sum is σ = 1212002202. Its totient is φ = 1212002200.

The previous prime is 1212002149. The next prime is 1212002213. The reversal of 1212002201 is 1022002121.

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., 1159062025 + 52940176 = 34045^2 + 7276^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212002201 - 2¹⁰ = 1212001177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212002291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606001100 + 606001101.

It is an arithmetic number, because the mean of its divisors is an integer number (606001101).

Almost surely, 2^1212002201 is an apocalyptic number.

It is an amenable number.

1212002201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212002201 is an equidigital number, since it uses as much as digits as its factorization.

1212002201 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.

The square root of 1212002201 is about 34813.8219820806. The cubic root of 1212002201 is about 1066.1896676596.

Adding to 1212002201 its reverse (1022002121), we get a palindrome (2234004322).

The spelling of 1212002201 in words is "one billion, two hundred twelve million, two thousand, two hundred one".