1119212444 has 12 divisors (see below), whose sum is σ = 2238424944. Its totient is φ = 479662464.

The previous prime is 1119212443. The next prime is 1119212449. The reversal of 1119212444 is 4442129111.

1119212444 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119212443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19985909 + ... + 19985964.

It is an arithmetic number, because the mean of its divisors is an integer number (186535412).

Almost surely, 2^1119212444 is an apocalyptic number.

1119212444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1119212444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1119212444 is a wasteful number, since it uses less digits than its factorization.

1119212444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39971884 (or 39971882 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1119212444 is about 33454.6326238983. The cubic root of 1119212444 is about 1038.2553478240.

The spelling of 1119212444 in words is "one billion, one hundred nineteen million, two hundred twelve thousand, four hundred forty-four".