1212102130 has 8 divisors (see below), whose sum is σ = 2181783852. Its totient is φ = 484840848.

The previous prime is 1212102121. The next prime is 1212102137. The reversal of 1212102130 is 312012121.

It can be written as a sum of positive squares in 2 ways, for example, as 1200137449 + 11964681 = 34643^2 + 3459^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1212102130.

It is not an unprimeable number, because it can be changed into a prime (1212102137) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60605097 + ... + 60605116.

Almost surely, 2^1212102130 is an apocalyptic number.

1212102130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212102130 is a deficient number, since it is larger than the sum of its proper divisors (969681722).

1212102130 is a wasteful number, since it uses less digits than its factorization.

1212102130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121210220.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1212102130 is about 34815.2571439592. The cubic root of 1212102130 is about 1066.2189691298.

Adding to 1212102130 its reverse (312012121), we get a palindrome (1524114251).

Subtracting from 1212102130 its reverse (312012121), we obtain a palindrome (900090009).

The spelling of 1212102130 in words is "one billion, two hundred twelve million, one hundred two thousand, one hundred thirty".