1244223100 has 36 divisors (see below), whose sum is σ = 2744239288. Its totient is φ = 489528000.

The previous prime is 1244223091. The next prime is 1244223133. The reversal of 1244223100 is 13224421.

It is a super-2 number, since 2×1244223100² = 3096182245147220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95886 + ... + 108085.

Almost surely, 2^1244223100 is an apocalyptic number.

1244223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244223100 is an abundant number, since it is smaller than the sum of its proper divisors (1500016188).

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

1244223100 is a wasteful number, since it uses less digits than its factorization.

1244223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204046 (or 204039 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1244223100 is about 35273.5467454011. The cubic root of 1244223100 is about 1075.5553215206. Note that the first 3 decimals are identical.

Adding to 1244223100 its reverse (13224421), we get a palindrome (1257447521).

It can be divided in two parts, 124 and 4223100, that added together give a palindrome (4223224).

The spelling of 1244223100 in words is "one billion, two hundred forty-four million, two hundred twenty-three thousand, one hundred".