11221836826554 has 24 divisors (see below), whose sum is σ = 24345929859732. Its totient is φ = 3735696880320.

The previous prime is 11221836826513. The next prime is 11221836826619. The reversal of 11221836826554 is 45562863812211.

11221836826554 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 1 + 8 + 3 + 6 + 82 + 6 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7226295583329 + 3995541243225 = 2688177^2 + 1998885^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11221836826554.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409602189 + ... + 409629584.

Almost surely, 2^{11221836826554} is an apocalyptic number.

11221836826554 is an abundant number, since it is smaller than the sum of its proper divisors (13124093033178).

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

11221836826554 is a wasteful number, since it uses less digits than its factorization.

11221836826554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819232542 (or 819232539 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 11221836826554 in words is "eleven trillion, two hundred twenty-one billion, eight hundred thirty-six million, eight hundred twenty-six thousand, five hundred fifty-four".