1121555241444 has 48 divisors (see below), whose sum is σ = 3022801298496. Its totient is φ = 319873152000.

The previous prime is 1121555241437. The next prime is 1121555241467. The reversal of 1121555241444 is 4441425551211.

It is a super-2 number, since 2×1121555241444² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249898657 + ... + 249903144.

It is an arithmetic number, because the mean of its divisors is an integer number (62975027052).

Almost surely, 2^{1121555241444} is an apocalyptic number.

It is an amenable number.

1121555241444 is an abundant number, since it is smaller than the sum of its proper divisors (1901246057052).

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

1121555241444 is a wasteful number, since it uses less digits than its factorization.

1121555241444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499801836 (or 499801834 counting only the distinct ones).

The product of its digits is 128000, while the sum is 39.

The spelling of 1121555241444 in words is "one trillion, one hundred twenty-one billion, five hundred fifty-five million, two hundred forty-one thousand, four hundred forty-four".