1212354130 has 32 divisors (see below), whose sum is σ = 2357160624. Its totient is φ = 446294016.

The previous prime is 1212354103. The next prime is 1212354131. The reversal of 1212354130 is 314532121.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3470769 + 1208883361 = 1863^2 + 34769^2 .

It is not an unprimeable number, because it can be changed into a prime (1212354131) 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 15 ways as a sum of consecutive naturals, for example, 29974 + ... + 57646.

Almost surely, 2^1212354130 is an apocalyptic number.

1212354130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212354130 is a deficient number, since it is larger than the sum of its proper divisors (1144806494).

1212354130 is a wasteful number, since it uses less digits than its factorization.

1212354130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28030.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1212354130 is about 34818.8760588276. The cubic root of 1212354130 is about 1066.2928541475.

Adding to 1212354130 its reverse (314532121), we get a palindrome (1526886251).

The spelling of 1212354130 in words is "one billion, two hundred twelve million, three hundred fifty-four thousand, one hundred thirty".