10212220121087 has 2 divisors, whose sum is σ = 10212220121088. Its totient is φ = 10212220121086.

The previous prime is 10212220121069. The next prime is 10212220121143. The reversal of 10212220121087 is 78012102221201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10212220121087 - 2⁸ = 10212220120831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212220121387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106110060543 + 5106110060544.

It is an arithmetic number, because the mean of its divisors is an integer number (5106110060544).

Almost surely, 2^{10212220121087} is an apocalyptic number.

10212220121087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212220121087 is an equidigital number, since it uses as much as digits as its factorization.

10212220121087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 10212220121087 its reverse (78012102221201), we get a palindrome (88224322342288).

The spelling of 10212220121087 in words is "ten trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, eighty-seven".