11212867467844 has 135 divisors (see below), whose sum is σ = 23421209491743. Its totient is φ = 4696800215184.

The previous prime is 11212867467829. The next prime is 11212867467863. The reversal of 11212867467844 is 44876476821211.

The square root of 11212867467844 is 3348562.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 15423476209 + ... + 15423476935.

Almost surely, 2^{11212867467844} is an apocalyptic number.

11212867467844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11212867467844 is the 3348562-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212867467844

11212867467844 is an abundant number, since it is smaller than the sum of its proper divisors (12208342023899).

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

11212867467844 is an frugal number, since it uses more digits than its factorization.

11212867467844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 783 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 61.

The spelling of 11212867467844 in words is "eleven trillion, two hundred twelve billion, eight hundred sixty-seven million, four hundred sixty-seven thousand, eight hundred forty-four".