11019121021212 has 12 divisors (see below), whose sum is σ = 25711282382856. Its totient is φ = 3673040340400.

The previous prime is 11019121021201. The next prime is 11019121021253. The reversal of 11019121021212 is 21212012191011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 459130042539 + ... + 459130042562.

It is an arithmetic number, because the mean of its divisors is an integer number (2142606865238).

Almost surely, 2^{11019121021212} is an apocalyptic number.

11019121021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11019121021212 is an abundant number, since it is smaller than the sum of its proper divisors (14692161361644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11019121021212 is a wasteful number, since it uses less digits than its factorization.

11019121021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918260085108 (or 918260085106 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 11019121021212 in words is "eleven trillion, nineteen billion, one hundred twenty-one million, twenty-one thousand, two hundred twelve".