1220044023 has 12 divisors (see below), whose sum is σ = 1922493768. Its totient is φ = 739420560.

The previous prime is 1220044013. The next prime is 1220044037. The reversal of 1220044023 is 3204400221.

1220044023 is a `hidden beast` number, since 1 + 2 + 200 + 440 + 23 = 666.

1220044023 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1220044023 - 2⁶ = 1220043959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220043987 and 1220044005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220044013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6161740 + ... + 6161937.

It is an arithmetic number, because the mean of its divisors is an integer number (160207814).

Almost surely, 2^1220044023 is an apocalyptic number.

1220044023 is a deficient number, since it is larger than the sum of its proper divisors (702449745).

1220044023 is a wasteful number, since it uses less digits than its factorization.

1220044023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323694 (or 12323691 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1220044023 is about 34929.1285748729. The cubic root of 1220044023 is about 1068.5425824217.

Adding to 1220044023 its reverse (3204400221), we get a palindrome (4424444244).

The spelling of 1220044023 in words is "one billion, two hundred twenty million, forty-four thousand, twenty-three".