11419256219121 has 27 divisors (see below), whose sum is σ = 17128424657721. Its totient is φ = 7612655000508.

The previous prime is 11419256219089. The next prime is 11419256219149. The reversal of 11419256219121 is 12191265291411.

The square root of 11419256219121 is 3379239.

It is a perfect power (a square), and thus also a powerful number.

11419256219121 is a `hidden beast` number, since 1 + 1 + 4 + 1 + 9 + 2 + 5 + 621 + 9 + 12 + 1 = 666.

11419256219121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (27).

It is not a de Polignac number, because 11419256219121 - 2⁵ = 11419256219089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11419256219171) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 273697500 + ... + 273739218.

Almost surely, 2^{11419256219121} is an apocalyptic number.

11419256219121 is the 3379239-th square number.

11419256219121 is the 1689620-th centered octagonal number.

It is an amenable number.

11419256219121 is a deficient number, since it is larger than the sum of its proper divisors (5709168438600).

11419256219121 is an frugal number, since it uses more digits than its factorization.

11419256219121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83462 (or 41722 counting only the distinct ones).

The product of its digits is 77760, while the sum is 45.

The spelling of 11419256219121 in words is "eleven trillion, four hundred nineteen billion, two hundred fifty-six million, two hundred nineteen thousand, one hundred twenty-one".