1212340051 has 16 divisors (see below), whose sum is σ = 1364428800. Its totient is φ = 1068804000.

The previous prime is 1212340013. The next prime is 1212340079. The reversal of 1212340051 is 1500432121.

It is a cyclic number.

It is not a de Polignac number, because 1212340051 - 2⁷ = 1212339923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212340351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221850 + ... + 227248.

It is an arithmetic number, because the mean of its divisors is an integer number (85276800).

Almost surely, 2^1212340051 is an apocalyptic number.

1212340051 is a deficient number, since it is larger than the sum of its proper divisors (152088749).

1212340051 is a wasteful number, since it uses less digits than its factorization.

1212340051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1212340051 is about 34818.6738834207. The cubic root of 1212340051 is about 1066.2887265320.

Adding to 1212340051 its reverse (1500432121), we get a palindrome (2712772172).

The spelling of 1212340051 in words is "one billion, two hundred twelve million, three hundred forty thousand, fifty-one".