121001020212217 has 2 divisors, whose sum is σ = 121001020212218. Its totient is φ = 121001020212216.

The previous prime is 121001020212199. The next prime is 121001020212257. The reversal of 121001020212217 is 712212020100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100109209800681 + 20891810411536 = 10005459^2 + 4570756^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001020212217 - 2⁴³ = 112204927190009 is a prime.

It is not a weakly prime, because it can be changed into another prime (121001020212257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500510106108 + 60500510106109.

It is an arithmetic number, because the mean of its divisors is an integer number (60500510106109).

Almost surely, 2^{121001020212217} is an apocalyptic number.

It is an amenable number.

121001020212217 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001020212217 is an equidigital number, since it uses as much as digits as its factorization.

121001020212217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 121001020212217 its reverse (712212020100121), we get a palindrome (833213040312338).

The spelling of 121001020212217 in words is "one hundred twenty-one trillion, one billion, twenty million, two hundred twelve thousand, two hundred seventeen".