1240221242 has 32 divisors (see below), whose sum is σ = 2067351552. Its totient is φ = 554402304.

The previous prime is 1240221233. The next prime is 1240221263. The reversal of 1240221242 is 2421220421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113303 + ... + 123765.

It is an arithmetic number, because the mean of its divisors is an integer number (64604736).

Almost surely, 2^1240221242 is an apocalyptic number.

1240221242 is a deficient number, since it is larger than the sum of its proper divisors (827130310).

1240221242 is a wasteful number, since it uses less digits than its factorization.

1240221242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10622.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1240221242 is about 35216.7750085098. The cubic root of 1240221242 is about 1074.4009619426.

Adding to 1240221242 its reverse (2421220421), we get a palindrome (3661441663).

The spelling of 1240221242 in words is "one billion, two hundred forty million, two hundred twenty-one thousand, two hundred forty-two".