2011200211901 has 2 divisors, whose sum is σ = 2011200211902. Its totient is φ = 2011200211900.

The previous prime is 2011200211861. The next prime is 2011200211931. The reversal of 2011200211901 is 1091120021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1945997100100 + 65203111801 = 1394990^2 + 255349^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011200211901 - 2¹⁸ = 2011199949757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011200211931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005600105950 + 1005600105951.

It is an arithmetic number, because the mean of its divisors is an integer number (1005600105951).

Almost surely, 2^{2011200211901} is an apocalyptic number.

It is an amenable number.

2011200211901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011200211901 is an equidigital number, since it uses as much as digits as its factorization.

2011200211901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 2011200211901 in words is "two trillion, eleven billion, two hundred million, two hundred eleven thousand, nine hundred one".