2001211011377 has 2 divisors, whose sum is σ = 2001211011378. Its totient is φ = 2001211011376.

The previous prime is 2001211011281. The next prime is 2001211011467. The reversal of 2001211011377 is 7731101121002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1495278969856 + 505932041521 = 1222816^2 + 711289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001211011377 - 2¹⁰ = 2001211010353 is a prime.

It is a super-2 number, since 2×2001211011377² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2001211011077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000605505688 + 1000605505689.

It is an arithmetic number, because the mean of its divisors is an integer number (1000605505689).

Almost surely, 2^{2001211011377} is an apocalyptic number.

It is an amenable number.

2001211011377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001211011377 is an equidigital number, since it uses as much as digits as its factorization.

2001211011377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 26.

Adding to 2001211011377 its reverse (7731101121002), we get a palindrome (9732312132379).

The spelling of 2001211011377 in words is "two trillion, one billion, two hundred eleven million, eleven thousand, three hundred seventy-seven".