11212110344440 has 32 divisors (see below), whose sum is σ = 26554998186000. Its totient is φ = 4248799709184.

The previous prime is 11212110344431. The next prime is 11212110344453. The reversal of 11212110344440 is 4444301121211.

It is a happy number.

It is a super-2 number, since 2×11212110344440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212110344399 and 11212110344408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7376387625 + ... + 7376389144.

Almost surely, 2^{11212110344440} is an apocalyptic number.

11212110344440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212110344440 is an abundant number, since it is smaller than the sum of its proper divisors (15342887841560).

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

11212110344440 is a wasteful number, since it uses less digits than its factorization.

11212110344440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14752776799 (or 14752776795 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 11212110344440 its reverse (4444301121211), we get a palindrome (15656411465651).

The spelling of 11212110344440 in words is "eleven trillion, two hundred twelve billion, one hundred ten million, three hundred forty-four thousand, four hundred forty".