100210121001217 has 2 divisors, whose sum is σ = 100210121001218. Its totient is φ = 100210121001216.

The previous prime is 100210121001209. The next prime is 100210121001227. The reversal of 100210121001217 is 712100121012001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96276737309041 + 3933383692176 = 9812071^2 + 1983276^2 .

It is a cyclic number.

It is not a de Polignac number, because 100210121001217 - 2³ = 100210121001209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100210121001194 and 100210121001203.

It is not a weakly prime, because it can be changed into another prime (100210121001227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105060500608 + 50105060500609.

It is an arithmetic number, because the mean of its divisors is an integer number (50105060500609).

Almost surely, 2^{100210121001217} is an apocalyptic number.

It is an amenable number.

100210121001217 is a deficient number, since it is larger than the sum of its proper divisors (1).

100210121001217 is an equidigital number, since it uses as much as digits as its factorization.

100210121001217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 100210121001217 its reverse (712100121012001), we get a palindrome (812310242013218).

The spelling of 100210121001217 in words is "one hundred trillion, two hundred ten billion, one hundred twenty-one million, one thousand, two hundred seventeen".