1212130001 has 8 divisors (see below), whose sum is σ = 1221335808. Its totient is φ = 1202940000.

The previous prime is 1212129983. The next prime is 1212130009. The reversal of 1212130001 is 1000312121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212130001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212130009) 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, 182621 + ... + 189141.

It is an arithmetic number, because the mean of its divisors is an integer number (152666976).

Almost surely, 2^1212130001 is an apocalyptic number.

It is an amenable number.

1212130001 is a deficient number, since it is larger than the sum of its proper divisors (9205807).

1212130001 is a wasteful number, since it uses less digits than its factorization.

1212130001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1212130001 is about 34815.6574115727. The cubic root of 1212130001 is about 1066.2271412578.

Adding to 1212130001 its reverse (1000312121), we get a palindrome (2212442122).

The spelling of 1212130001 in words is "one billion, two hundred twelve million, one hundred thirty thousand, one".