2011200121087 has 2 divisors, whose sum is σ = 2011200121088. Its totient is φ = 2011200121086.

The previous prime is 2011200121067. The next prime is 2011200121127. The reversal of 2011200121087 is 7801210021102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011200121087 - 2⁷ = 2011200120959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011200121057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005600060543 + 1005600060544.

It is an arithmetic number, because the mean of its divisors is an integer number (1005600060544).

Almost surely, 2^{2011200121087} is an apocalyptic number.

2011200121087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011200121087 is an equidigital number, since it uses as much as digits as its factorization.

2011200121087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 2011200121087 its reverse (7801210021102), we get a palindrome (9812410142189).

The spelling of 2011200121087 in words is "two trillion, eleven billion, two hundred million, one hundred twenty-one thousand, eighty-seven".