1212102011011 has 8 divisors (see below), whose sum is σ = 1214248447440. Its totient is φ = 1209956600832.

The previous prime is 1212102010993. The next prime is 1212102011039. The reversal of 1212102011011 is 1101102012121.

It is a happy number.

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 1212102011011 - 2⁷ = 1212102010883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212102010982 and 1212102011000.

It is not an unprimeable number, because it can be changed into a prime (1212102011411) 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, 2127291 + ... + 2636203.

It is an arithmetic number, because the mean of its divisors is an integer number (151781055930).

Almost surely, 2^{1212102011011} is an apocalyptic number.

1212102011011 is a deficient number, since it is larger than the sum of its proper divisors (2146436429).

1212102011011 is an equidigital number, since it uses as much as digits as its factorization.

1212102011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513125.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1212102011011 its reverse (1101102012121), we get a palindrome (2313204023132).

The spelling of 1212102011011 in words is "one trillion, two hundred twelve billion, one hundred two million, eleven thousand, eleven".