1212015052011 has 8 divisors (see below), whose sum is σ = 1616443015824. Its totient is φ = 807798561440.

The previous prime is 1212015052009. The next prime is 1212015052021. The reversal of 1212015052011 is 1102505102121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212015052011 - 2¹ = 1212015052009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212015052021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52854936 + ... + 52877861.

It is an arithmetic number, because the mean of its divisors is an integer number (202055376978).

Almost surely, 2^{1212015052011} is an apocalyptic number.

1212015052011 is a deficient number, since it is larger than the sum of its proper divisors (404427963813).

1212015052011 is a wasteful number, since it uses less digits than its factorization.

1212015052011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105736621.

The product of its (nonzero) digits is 200, while the sum is 21.

The spelling of 1212015052011 in words is "one trillion, two hundred twelve billion, fifteen million, fifty-two thousand, eleven".