1211011111007 has 2 divisors, whose sum is σ = 1211011111008. Its totient is φ = 1211011111006.

The previous prime is 1211011110961. The next prime is 1211011111021. The reversal of 1211011111007 is 7001111101121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211011111007 - 2¹² = 1211011106911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211010111007) 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, 605505555503 + 605505555504.

It is an arithmetic number, because the mean of its divisors is an integer number (605505555504).

Almost surely, 2^{1211011111007} is an apocalyptic number.

1211011111007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211011111007 is an equidigital number, since it uses as much as digits as its factorization.

1211011111007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 17.

Adding to 1211011111007 its reverse (7001111101121), we get a palindrome (8212122212128).

The spelling of 1211011111007 in words is "one trillion, two hundred eleven billion, eleven million, one hundred eleven thousand, seven".