121340422277 has 2 divisors, whose sum is σ = 121340422278. Its totient is φ = 121340422276.

The previous prime is 121340422267. The next prime is 121340422319. The reversal of 121340422277 is 772224043121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87834584161 + 33505838116 = 296369^2 + 183046^2 .

It is a cyclic number.

It is not a de Polignac number, because 121340422277 - 2³⁴ = 104160553093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121340422267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670211138 + 60670211139.

It is an arithmetic number, because the mean of its divisors is an integer number (60670211139).

Almost surely, 2^121340422277 is an apocalyptic number.

It is an amenable number.

121340422277 is a deficient number, since it is larger than the sum of its proper divisors (1).

121340422277 is an equidigital number, since it uses as much as digits as its factorization.

121340422277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 35.

Adding to 121340422277 its reverse (772224043121), we get a palindrome (893564465398).

The spelling of 121340422277 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty-two thousand, two hundred seventy-seven".