1012220044 has 48 divisors (see below), whose sum is σ = 1972809216. Its totient is φ = 450576000.

The previous prime is 1012220039. The next prime is 1012220047. The reversal of 1012220044 is 4400222101.

It is not an unprimeable number, because it can be changed into a prime (1012220047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483969 + ... + 486055.

It is an arithmetic number, because the mean of its divisors is an integer number (41100192).

Almost surely, 2^1012220044 is an apocalyptic number.

It is an amenable number.

1012220044 is a deficient number, since it is larger than the sum of its proper divisors (960589172).

1012220044 is a wasteful number, since it uses less digits than its factorization.

1012220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1012220044 is about 31815.4057651321. The cubic root of 1012220044 is about 1004.0568675693.

Adding to 1012220044 its reverse (4400222101), we get a palindrome (5412442145).

The spelling of 1012220044 in words is "one billion, twelve million, two hundred twenty thousand, forty-four".