121187467669 has 2 divisors, whose sum is σ = 121187467670. Its totient is φ = 121187467668.

The previous prime is 121187467651. The next prime is 121187467679. The reversal of 121187467669 is 966764781121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63573066769 + 57614400900 = 252137^2 + 240030^2 .

It is a cyclic number.

It is not a de Polignac number, because 121187467669 - 2²³ = 121179079061 is a prime.

It is a super-2 number, since 2×121187467669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121187467679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60593733834 + 60593733835.

It is an arithmetic number, because the mean of its divisors is an integer number (60593733835).

Almost surely, 2^121187467669 is an apocalyptic number.

It is an amenable number.

121187467669 is a deficient number, since it is larger than the sum of its proper divisors (1).

121187467669 is an equidigital number, since it uses as much as digits as its factorization.

121187467669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 58.

The spelling of 121187467669 in words is "one hundred twenty-one billion, one hundred eighty-seven million, four hundred sixty-seven thousand, six hundred sixty-nine".