122766486197 has 8 divisors (see below), whose sum is σ = 123347311800. Its totient is φ = 122186049984.

The previous prime is 122766486173. The next prime is 122766486203. The reversal of 122766486197 is 791684667221.

It can be written as a sum of positive squares in 4 ways, for example, as 30938699236 + 91827786961 = 175894^2 + 303031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122766486197 - 2¹⁰ = 122766485173 is a prime.

It is a super-2 number, since 2×122766486197² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122766486097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544679 + ... + 736347.

It is an arithmetic number, because the mean of its divisors is an integer number (15418413975).

Almost surely, 2^122766486197 is an apocalyptic number.

It is an amenable number.

122766486197 is a deficient number, since it is larger than the sum of its proper divisors (580825603).

122766486197 is a wasteful number, since it uses less digits than its factorization.

122766486197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194695.

The product of its digits is 12192768, while the sum is 59.

The spelling of 122766486197 in words is "one hundred twenty-two billion, seven hundred sixty-six million, four hundred eighty-six thousand, one hundred ninety-seven".