1212012010011 has 16 divisors (see below), whose sum is σ = 1780381283328. Its totient is φ = 727279932000.

The previous prime is 1212012010007. The next prime is 1212012010043. The reversal of 1212012010011 is 1100102102121.

It is not a de Polignac number, because 1212012010011 - 2² = 1212012010007 is a prime.

It is a super-2 number, since 2×1212012010011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212012010711) 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 15 ways as a sum of consecutive naturals, for example, 181816651 + ... + 181823316.

It is an arithmetic number, because the mean of its divisors is an integer number (111273830208).

Almost surely, 2^{1212012010011} is an apocalyptic number.

1212012010011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212012010011 is a deficient number, since it is larger than the sum of its proper divisors (568369273317).

1212012010011 is a wasteful number, since it uses less digits than its factorization.

1212012010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363640082.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1212012010011 its reverse (1100102102121), we get a palindrome (2312114112132).

The spelling of 1212012010011 in words is "one trillion, two hundred twelve billion, twelve million, ten thousand, eleven".