121700771 has 2 divisors, whose sum is σ = 121700772. Its totient is φ = 121700770.

The previous prime is 121700753. The next prime is 121700779. The reversal of 121700771 is 177007121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121700771 is a prime.

It is a super-2 number, since 2×121700771² = 29622155323988882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121700771.

It is not a weakly prime, because it can be changed into another prime (121700779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60850385 + 60850386.

It is an arithmetic number, because the mean of its divisors is an integer number (60850386).

Almost surely, 2^121700771 is an apocalyptic number.

121700771 is a deficient number, since it is larger than the sum of its proper divisors (1).

121700771 is an equidigital number, since it uses as much as digits as its factorization.

121700771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 686, while the sum is 26.

The square root of 121700771 is about 11031.8072408831. The cubic root of 121700771 is about 495.5617484124.

Adding to 121700771 its reverse (177007121), we get a palindrome (298707892).

The spelling of 121700771 in words is "one hundred twenty-one million, seven hundred thousand, seven hundred seventy-one".