1220703130 has 16 divisors (see below), whose sum is σ = 2204291304. Its totient is φ = 486720000.

The previous prime is 1220703073. The next prime is 1220703131. The reversal of 1220703130 is 313070221.

It can be written as a sum of positive squares in 4 ways, for example, as 976500001 + 244203129 = 31249^2 + 15627^2 .

It is a super-2 number, since 2×1220703130² = 2980232263183593800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220703098 and 1220703107.

It is not an unprimeable number, because it can be changed into a prime (1220703131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191871 + ... + 198130.

Almost surely, 2^1220703130 is an apocalyptic number.

1220703130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220703130 is a deficient number, since it is larger than the sum of its proper divisors (983588174).

1220703130 is a wasteful number, since it uses less digits than its factorization.

1220703130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390321.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 1220703130 is about 34938.5622199884. The cubic root of 1220703130 is about 1068.7349681321.

Adding to 1220703130 its reverse (313070221), we get a palindrome (1533773351).

The spelling of 1220703130 in words is "one billion, two hundred twenty million, seven hundred three thousand, one hundred thirty".