1012204144 has 20 divisors (see below), whose sum is σ = 2241309424. Its totient is φ = 433801728.

The previous prime is 1012204111. The next prime is 1012204181. The reversal of 1012204144 is 4414022101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4518657 + ... + 4518880.

Almost surely, 2^1012204144 is an apocalyptic number.

1012204144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1012204144 is an abundant number, since it is smaller than the sum of its proper divisors (1229105280).

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

1012204144 is an equidigital number, since it uses as much as digits as its factorization.

1012204144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037552 (or 9037546 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1012204144 is about 31815.1558852067. The cubic root of 1012204144 is about 1004.0516102843.

Adding to 1012204144 its reverse (4414022101), we get a palindrome (5426226245).

The spelling of 1012204144 in words is "one billion, twelve million, two hundred four thousand, one hundred forty-four".