1001211110051 has 2 divisors, whose sum is σ = 1001211110052. Its totient is φ = 1001211110050.

The previous prime is 1001211109961. The next prime is 1001211110089. The reversal of 1001211110051 is 1500111121001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001211110051 - 2³⁴ = 984031240867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001211110551) 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, 500605555025 + 500605555026.

It is an arithmetic number, because the mean of its divisors is an integer number (500605555026).

Almost surely, 2^{1001211110051} is an apocalyptic number.

1001211110051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001211110051 is an equidigital number, since it uses as much as digits as its factorization.

1001211110051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 1001211110051 its reverse (1500111121001), we get a palindrome (2501322231052).

The spelling of 1001211110051 in words is "one trillion, one billion, two hundred eleven million, one hundred ten thousand, fifty-one".