1210000002251 has 2 divisors, whose sum is σ = 1210000002252. Its totient is φ = 1210000002250.

The previous prime is 1210000002229. The next prime is 1210000002259. The reversal of 1210000002251 is 1522000000121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210000002251 - 2⁶ = 1210000002187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1210000002259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605000001125 + 605000001126.

It is an arithmetic number, because the mean of its divisors is an integer number (605000001126).

Almost surely, 2^{1210000002251} is an apocalyptic number.

1210000002251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210000002251 is an equidigital number, since it uses as much as digits as its factorization.

1210000002251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 1210000002251 its reverse (1522000000121), we get a palindrome (2732000002372).

The spelling of 1210000002251 in words is "one trillion, two hundred ten billion, two thousand, two hundred fifty-one".