1202166612 has 18 divisors (see below), whose sum is σ = 3038810138. Its totient is φ = 400722192.

The previous prime is 1202166557. The next prime is 1202166619. The reversal of 1202166612 is 2166612021.

It can be written as a sum of positive squares in only one way, i.e., 839492676 + 362673936 = 28974^2 + 19044^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202166619) 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 in 5 ways as a sum of consecutive naturals, for example, 16696723 + ... + 16696794.

Almost surely, 2^1202166612 is an apocalyptic number.

1202166612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202166612 is an abundant number, since it is smaller than the sum of its proper divisors (1836643526).

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

1202166612 is a wasteful number, since it uses less digits than its factorization.

1202166612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33393527 (or 33393522 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1202166612 is about 34672.2743990065. The cubic root of 1202166612 is about 1063.2977315565.

Adding to 1202166612 its reverse (2166612021), we get a palindrome (3368778633).

The spelling of 1202166612 in words is "one billion, two hundred two million, one hundred sixty-six thousand, six hundred twelve".