1301220224 has 32 divisors (see below), whose sum is σ = 2594800440. Its totient is φ = 649976320.

The previous prime is 1301220209. The next prime is 1301220241. The reversal of 1301220224 is 4220221031.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1301220224² = 3386348142693220352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144494 + ... + 153234.

Almost surely, 2^1301220224 is an apocalyptic number.

It is an amenable number.

1301220224 is a deficient number, since it is larger than the sum of its proper divisors (1293580216).

1301220224 is an equidigital number, since it uses as much as digits as its factorization.

1301220224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9918 (or 9906 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1301220224 is about 36072.4302480440. The cubic root of 1301220224 is about 1091.7342490440.

Adding to 1301220224 its reverse (4220221031), we get a palindrome (5521441255).

The spelling of 1301220224 in words is "one billion, three hundred one million, two hundred twenty thousand, two hundred twenty-four".