122018566197 has 16 divisors (see below), whose sum is σ = 177570432000. Its totient is φ = 73913612400.

The previous prime is 122018566147. The next prime is 122018566217. The reversal of 122018566197 is 791665810221.

It is a happy number.

It is not a de Polignac number, because 122018566197 - 2⁶ = 122018566133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122018566147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858879 + ... + 990812.

It is an arithmetic number, because the mean of its divisors is an integer number (11098152000).

Almost surely, 2^122018566197 is an apocalyptic number.

It is an amenable number.

122018566197 is a deficient number, since it is larger than the sum of its proper divisors (55551865803).

122018566197 is a wasteful number, since it uses less digits than its factorization.

122018566197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851704.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 122018566197 in words is "one hundred twenty-two billion, eighteen million, five hundred sixty-six thousand, one hundred ninety-seven".