1212192973 has 16 divisors (see below), whose sum is σ = 1293064560. Its totient is φ = 1132425216.

The previous prime is 1212192967. The next prime is 1212192977. The reversal of 1212192973 is 3792912121.

It can be written as a sum of positive squares in 8 ways, for example, as 49519369 + 1162673604 = 7037^2 + 34098^2 .

It is not a de Polignac number, because 1212192973 - 2⁵ = 1212192941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212192977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2176011 + ... + 2176567.

It is an arithmetic number, because the mean of its divisors is an integer number (80816535).

Almost surely, 2^1212192973 is an apocalyptic number.

It is an amenable number.

1212192973 is a deficient number, since it is larger than the sum of its proper divisors (80871587).

1212192973 is a wasteful number, since it uses less digits than its factorization.

1212192973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its digits is 13608, while the sum is 37.

The square root of 1212192973 is about 34816.5617630460. The cubic root of 1212192973 is about 1066.2456049794.

The spelling of 1212192973 in words is "one billion, two hundred twelve million, one hundred ninety-two thousand, nine hundred seventy-three".