1242012522 has 64 divisors (see below), whose sum is σ = 2666177280. Its totient is φ = 384943104.

The previous prime is 1242012517. The next prime is 1242012523. The reversal of 1242012522 is 2252102421.

It is not an unprimeable number, because it can be changed into a prime (1242012523) 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, 662178 + ... + 664050.

It is an arithmetic number, because the mean of its divisors is an integer number (41659020).

Almost surely, 2^1242012522 is an apocalyptic number.

1242012522 is an abundant number, since it is smaller than the sum of its proper divisors (1424164758).

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

1242012522 is a wasteful number, since it uses less digits than its factorization.

1242012522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1242012522 is about 35242.1980302024. The cubic root of 1242012522 is about 1074.9179737665.

Adding to 1242012522 its reverse (2252102421), we get a palindrome (3494114943).

It can be divided in two parts, 12420 and 12522, that added together give a palindrome (24942).

The spelling of 1242012522 in words is "one billion, two hundred forty-two million, twelve thousand, five hundred twenty-two".