1212011202011 has 16 divisors (see below), whose sum is σ = 1265719760928. Its totient is φ = 1159796352000.

The previous prime is 1212011201993. The next prime is 1212011202041. The reversal of 1212011202011 is 1102021102121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212011202011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212011202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331030 + ... + 2048331.

It is an arithmetic number, because the mean of its divisors is an integer number (79107485058).

Almost surely, 2^{1212011202011} is an apocalyptic number.

1212011202011 is a deficient number, since it is larger than the sum of its proper divisors (53708558917).

1212011202011 is a wasteful number, since it uses less digits than its factorization.

1212011202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379582.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212011202011 its reverse (1102021102121), we get a palindrome (2314032304132).

The spelling of 1212011202011 in words is "one trillion, two hundred twelve billion, eleven million, two hundred two thousand, eleven".