2001211201079 has 2 divisors, whose sum is σ = 2001211201080. Its totient is φ = 2001211201078.

The previous prime is 2001211201009. The next prime is 2001211201081. The reversal of 2001211201079 is 9701021121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001211201079 - 2¹⁶ = 2001211135543 is a prime.

It is a Sophie Germain prime.

Together with 2001211201081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001211201009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000605600539 + 1000605600540.

It is an arithmetic number, because the mean of its divisors is an integer number (1000605600540).

Almost surely, 2^{2001211201079} is an apocalyptic number.

2001211201079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001211201079 is an equidigital number, since it uses as much as digits as its factorization.

2001211201079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 2001211201079 in words is "two trillion, one billion, two hundred eleven million, two hundred one thousand, seventy-nine".