1012205126 has 16 divisors (see below), whose sum is σ = 1692232560. Its totient is φ = 451261440.

The previous prime is 1012205123. The next prime is 1012205179. The reversal of 1012205126 is 6215022101.

It is a junction number, because it is equal to n+sod(n) for n = 1012205098 and 1012205107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012205123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782795 + ... + 784086.

It is an arithmetic number, because the mean of its divisors is an integer number (105764535).

Almost surely, 2^1012205126 is an apocalyptic number.

1012205126 is a deficient number, since it is larger than the sum of its proper divisors (680027434).

1012205126 is a wasteful number, since it uses less digits than its factorization.

1012205126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566919.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1012205126 is about 31815.1713180992. The cubic root of 1012205126 is about 1004.0519349811.

Adding to 1012205126 its reverse (6215022101), we get a palindrome (7227227227).

The spelling of 1012205126 in words is "one billion, twelve million, two hundred five thousand, one hundred twenty-six".