1220132245 has 8 divisors (see below), whose sum is σ = 1550285784. Its totient is φ = 918687744.

The previous prime is 1220132219. The next prime is 1220132281. The reversal of 1220132245 is 5422310221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 252237924 + 967894321 = 15882^2 + 31111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220132245 - 2⁷ = 1220132117 is a prime.

It is a Duffinian 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, 7177164 + ... + 7177333.

It is an arithmetic number, because the mean of its divisors is an integer number (193785723).

Almost surely, 2^1220132245 is an apocalyptic number.

It is an amenable number.

1220132245 is a deficient number, since it is larger than the sum of its proper divisors (330153539).

1220132245 is a wasteful number, since it uses less digits than its factorization.

1220132245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14354519.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1220132245 is about 34930.3914235154. The cubic root of 1220132245 is about 1068.5683374190.

Adding to 1220132245 its reverse (5422310221), we get a palindrome (6642442466).

The spelling of 1220132245 in words is "one billion, two hundred twenty million, one hundred thirty-two thousand, two hundred forty-five".