1220254606 has 4 divisors (see below), whose sum is σ = 1830381912. Its totient is φ = 610127302.

The previous prime is 1220254573. The next prime is 1220254621. The reversal of 1220254606 is 6064520221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6064520221 = 857 ⋅7076453.

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 as a sum of consecutive naturals, namely, 305063650 + ... + 305063653.

It is an arithmetic number, because the mean of its divisors is an integer number (457595478).

Almost surely, 2^1220254606 is an apocalyptic number.

1220254606 is a deficient number, since it is larger than the sum of its proper divisors (610127306).

1220254606 is an equidigital number, since it uses as much as digits as its factorization.

1220254606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610127305.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1220254606 is about 34932.1428772986. The cubic root of 1220254606 is about 1068.6040566946.

Adding to 1220254606 its reverse (6064520221), we get a palindrome (7284774827).

The spelling of 1220254606 in words is "one billion, two hundred twenty million, two hundred fifty-four thousand, six hundred six".