1212111102011 has 8 divisors (see below), whose sum is σ = 1234947848400. Its totient is φ = 1189470379552.

The previous prime is 1212111102001. The next prime is 1212111102127. The reversal of 1212111102011 is 1102011112121.

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 1212111102011 - 2⁶ = 1212111101947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212111102001) 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, 48993500 + ... + 49018233.

It is an arithmetic number, because the mean of its divisors is an integer number (154368481050).

Almost surely, 2^{1212111102011} is an apocalyptic number.

1212111102011 is a deficient number, since it is larger than the sum of its proper divisors (22836746389).

1212111102011 is an equidigital number, since it uses as much as digits as its factorization.

1212111102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98011965.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1212111102011 its reverse (1102011112121), we get a palindrome (2314122214132).

The spelling of 1212111102011 in words is "one trillion, two hundred twelve billion, one hundred eleven million, one hundred two thousand, eleven".