1220450126 has 16 divisors (see below), whose sum is σ = 2099927040. Its totient is φ = 521118360.

The previous prime is 1220450117. The next prime is 1220450137. The reversal of 1220450126 is 6210540221.

It is a happy number.

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, 157046 + ... + 164633.

It is an arithmetic number, because the mean of its divisors is an integer number (131245440).

Almost surely, 2^1220450126 is an apocalyptic number.

1220450126 is a deficient number, since it is larger than the sum of its proper divisors (879476914).

1220450126 is a wasteful number, since it uses less digits than its factorization.

1220450126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321959.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1220450126 is about 34934.9413338566. The cubic root of 1220450126 is about 1068.6611273819.

Adding to 1220450126 its reverse (6210540221), we get a palindrome (7430990347).

The spelling of 1220450126 in words is "one billion, two hundred twenty million, four hundred fifty thousand, one hundred twenty-six".