121131550422611 has 2 divisors, whose sum is σ = 121131550422612. Its totient is φ = 121131550422610.

The previous prime is 121131550422521. The next prime is 121131550422683. The reversal of 121131550422611 is 116224055131121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121131550422611 - 2³⁴ = 121114370553427 is a prime.

It is a super-2 number, since 2×121131550422611² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121131550422011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565775211305 + 60565775211306.

It is an arithmetic number, because the mean of its divisors is an integer number (60565775211306).

Almost surely, 2^{121131550422611} is an apocalyptic number.

121131550422611 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131550422611 is an equidigital number, since it uses as much as digits as its factorization.

121131550422611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 121131550422611 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, five hundred fifty million, four hundred twenty-two thousand, six hundred eleven".