1012011012251 has 2 divisors, whose sum is σ = 1012011012252. Its totient is φ = 1012011012250.

The previous prime is 1012011012203. The next prime is 1012011012269. The reversal of 1012011012251 is 1522101102101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012011012251 - 2²⁶ = 1011943903387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012011012451) 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, 506005506125 + 506005506126.

It is an arithmetic number, because the mean of its divisors is an integer number (506005506126).

Almost surely, 2^{1012011012251} is an apocalyptic number.

1012011012251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012011012251 is an equidigital number, since it uses as much as digits as its factorization.

1012011012251 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 17.

Adding to 1012011012251 its reverse (1522101102101), we get a palindrome (2534112114352).

The spelling of 1012011012251 in words is "one trillion, twelve billion, eleven million, twelve thousand, two hundred fifty-one".