11210001220087 has 2 divisors, whose sum is σ = 11210001220088. Its totient is φ = 11210001220086.

The previous prime is 11210001220081. The next prime is 11210001220141. The reversal of 11210001220087 is 78002210001211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11210001220087 is a prime.

It is a super-2 number, since 2×11210001220087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210001220081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605000610043 + 5605000610044.

It is an arithmetic number, because the mean of its divisors is an integer number (5605000610044).

Almost surely, 2^{11210001220087} is an apocalyptic number.

11210001220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210001220087 is an equidigital number, since it uses as much as digits as its factorization.

11210001220087 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 11210001220087 its reverse (78002210001211), we get a palindrome (89212211221298).

The spelling of 11210001220087 in words is "eleven trillion, two hundred ten billion, one million, two hundred twenty thousand, eighty-seven".