1205111022 has 8 divisors (see below), whose sum is σ = 2410222056. Its totient is φ = 401703672.

The previous prime is 1205111009. The next prime is 1205111027. The reversal of 1205111022 is 2201115021.

1205111022 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

1205111022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1205110992 and 1205111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205111027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100425913 + ... + 100425924.

It is an arithmetic number, because the mean of its divisors is an integer number (301277757).

Almost surely, 2^1205111022 is an apocalyptic number.

1205111022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205111022 is a wasteful number, since it uses less digits than its factorization.

1205111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200851842.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1205111022 is about 34714.7090150559. The cubic root of 1205111022 is about 1064.1651187909.

Adding to 1205111022 its reverse (2201115021), we get a palindrome (3406226043).

The spelling of 1205111022 in words is "one billion, two hundred five million, one hundred eleven thousand, twenty-two".