1201221422 has 16 divisors (see below), whose sum is σ = 1823623200. Its totient is φ = 593369088.

The previous prime is 1201221407. The next prime is 1201221431. The reversal of 1201221422 is 2241221021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201221422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111038 + ... + 121374.

It is an arithmetic number, because the mean of its divisors is an integer number (113976450).

Almost surely, 2^1201221422 is an apocalyptic number.

1201221422 is a deficient number, since it is larger than the sum of its proper divisors (622401778).

1201221422 is a wasteful number, since it uses less digits than its factorization.

1201221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1201221422 is about 34658.6413755646. The cubic root of 1201221422 is about 1063.0189898572.

Adding to 1201221422 its reverse (2241221021), we get a palindrome (3442442443).

The spelling of 1201221422 in words is "one billion, two hundred one million, two hundred twenty-one thousand, four hundred twenty-two".