121141217 has 2 divisors, whose sum is σ = 121141218. Its totient is φ = 121141216.

The previous prime is 121141171. The next prime is 121141243. The reversal of 121141217 is 712141121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120978001 + 163216 = 10999^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 121141217 - 2⁸ = 121140961 is a prime.

It is a super-3 number, since 3×121141217³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121141247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60570608 + 60570609.

It is an arithmetic number, because the mean of its divisors is an integer number (60570609).

Almost surely, 2^121141217 is an apocalyptic number.

It is an amenable number.

121141217 is a deficient number, since it is larger than the sum of its proper divisors (1).

121141217 is an equidigital number, since it uses as much as digits as its factorization.

121141217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112, while the sum is 20.

The square root of 121141217 is about 11006.4170827749. The cubic root of 121141217 is about 494.8010859452.

Adding to 121141217 its reverse (712141121), we get a palindrome (833282338).

It can be divided in two parts, 12114 and 1217, that added together give a palindrome (13331).

The spelling of 121141217 in words is "one hundred twenty-one million, one hundred forty-one thousand, two hundred seventeen".