1121223400044 has 48 divisors (see below), whose sum is σ = 2874555788160. Its totient is φ = 337320311040.

The previous prime is 1121223400021. The next prime is 1121223400049. The reversal of 1121223400044 is 4400043221211.

It is a junction number, because it is equal to n+sod(n) for n = 1121223399987 and 1121223400023.

It is not an unprimeable number, because it can be changed into a prime (1121223400049) by changing a digit.

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, 30536029 + ... + 30572724.

It is an arithmetic number, because the mean of its divisors is an integer number (59886578920).

Almost surely, 2^{1121223400044} is an apocalyptic number.

It is an amenable number.

1121223400044 is an abundant number, since it is smaller than the sum of its proper divisors (1753332388116).

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

1121223400044 is a wasteful number, since it uses less digits than its factorization.

1121223400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61108910 (or 61108908 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1121223400044 its reverse (4400043221211), we get a palindrome (5521266621255).

The spelling of 1121223400044 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-three million, four hundred thousand, forty-four".