121701611 has 2 divisors, whose sum is σ = 121701612. Its totient is φ = 121701610.

The previous prime is 121701557. The next prime is 121701637. The reversal of 121701611 is 116107121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121701611 - 2¹⁸ = 121439467 is a prime.

It is a super-2 number, since 2×121701611² = 29622564239990642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121701641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60850805 + 60850806.

It is an arithmetic number, because the mean of its divisors is an integer number (60850806).

Almost surely, 2^121701611 is an apocalyptic number.

121701611 is a deficient number, since it is larger than the sum of its proper divisors (1).

121701611 is an equidigital number, since it uses as much as digits as its factorization.

121701611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 121701611 is about 11031.8453125486. The cubic root of 121701611 is about 495.5628885610.

Adding to 121701611 its reverse (116107121), we get a palindrome (237808732).

The spelling of 121701611 in words is "one hundred twenty-one million, seven hundred one thousand, six hundred eleven".