1012122605 has 32 divisors (see below), whose sum is σ = 1374705024. Its totient is φ = 710228736.

The previous prime is 1012122593. The next prime is 1012122607. The reversal of 1012122605 is 5062212101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012122605 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 (1012122607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98522 + ... + 108308.

It is an arithmetic number, because the mean of its divisors is an integer number (42959532).

Almost surely, 2^1012122605 is an apocalyptic number.

It is an amenable number.

1012122605 is a deficient number, since it is larger than the sum of its proper divisors (362582419).

1012122605 is a wasteful number, since it uses less digits than its factorization.

1012122605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9885.

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

The square root of 1012122605 is about 31813.8744103889. The cubic root of 1012122605 is about 1004.0246488052.

Adding to 1012122605 its reverse (5062212101), we get a palindrome (6074334706).

The spelling of 1012122605 in words is "one billion, twelve million, one hundred twenty-two thousand, six hundred five".