1301720212 has 48 divisors (see below), whose sum is σ = 2488473232. Its totient is φ = 592220160.

The previous prime is 1301720201. The next prime is 1301720237. The reversal of 1301720212 is 2120271031.

It can be written as a sum of positive squares in 8 ways, for example, as 852873616 + 448846596 = 29204^2 + 21186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1301720212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2123218 + ... + 2123830.

Almost surely, 2^1301720212 is an apocalyptic number.

It is an amenable number.

1301720212 is a deficient number, since it is larger than the sum of its proper divisors (1186753020).

1301720212 is a wasteful number, since it uses less digits than its factorization.

1301720212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1301720212 is about 36079.3599167169. The cubic root of 1301720212 is about 1091.8740624577.

Adding to 1301720212 its reverse (2120271031), we get a palindrome (3421991243).

The spelling of 1301720212 in words is "one billion, three hundred one million, seven hundred twenty thousand, two hundred twelve".