2223121044 has 24 divisors (see below), whose sum is σ = 5260344768. Its totient is φ = 730602880.

The previous prime is 2223121031. The next prime is 2223121079. The reversal of 2223121044 is 4401213222.

It is a self number, because there is not a number n which added to its sum of digits gives 2223121044.

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, 1303797 + ... + 1305500.

It is an arithmetic number, because the mean of its divisors is an integer number (219181032).

Almost surely, 2^2223121044 is an apocalyptic number.

It is an amenable number.

2223121044 is an abundant number, since it is smaller than the sum of its proper divisors (3037223724).

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

2223121044 is a wasteful number, since it uses less digits than its factorization.

2223121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609375 (or 2609373 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2223121044 is about 47149.9845599126. The cubic root of 2223121044 is about 1305.1317950890.

Adding to 2223121044 its reverse (4401213222), we get a palindrome (6624334266).

The spelling of 2223121044 in words is "two billion, two hundred twenty-three million, one hundred twenty-one thousand, forty-four".