421222110001087 has 2 divisors, whose sum is σ = 421222110001088. Its totient is φ = 421222110001086.

The previous prime is 421222110001001. The next prime is 421222110001127. The reversal of 421222110001087 is 780100011222124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421222110001087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421222110001487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210611055000543 + 210611055000544.

It is an arithmetic number, because the mean of its divisors is an integer number (210611055000544).

Almost surely, 2^{421222110001087} is an apocalyptic number.

421222110001087 is a deficient number, since it is larger than the sum of its proper divisors (1).

421222110001087 is an equidigital number, since it uses as much as digits as its factorization.

421222110001087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 421222110001087 in words is "four hundred twenty-one trillion, two hundred twenty-two billion, one hundred ten million, one thousand, eighty-seven".