1212202130 has 8 divisors (see below), whose sum is σ = 2181963852. Its totient is φ = 484880848.

The previous prime is 1212202129. The next prime is 1212202139. The reversal of 1212202130 is 312022121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1121781049 + 90421081 = 33493^2 + 9509^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1212202139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60610097 + ... + 60610116.

Almost surely, 2^1212202130 is an apocalyptic number.

1212202130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212202130 is a deficient number, since it is larger than the sum of its proper divisors (969761722).

1212202130 is a wasteful number, since it uses less digits than its factorization.

1212202130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121220220.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1212202130 is about 34816.6932663055. The cubic root of 1212202130 is about 1066.2482898068.

Adding to 1212202130 its reverse (312022121), we get a palindrome (1524224251).

Subtracting from 1212202130 its reverse (312022121), we obtain a square (900180009 = 30003²).

The spelling of 1212202130 in words is "one billion, two hundred twelve million, two hundred two thousand, one hundred thirty".