1225044330 has 64 divisors (see below), whose sum is σ = 3018556800. Its totient is φ = 317998080.

The previous prime is 1225044319. The next prime is 1225044341. The reversal of 1225044330 is 334405221.

It is an interprime number because it is at equal distance from previous prime (1225044319) and next prime (1225044341).

It is a super-2 number, since 2×1225044330² = 3001467220930297800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1225044330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760566 + ... + 762174.

It is an arithmetic number, because the mean of its divisors is an integer number (47164950).

Almost surely, 2^1225044330 is an apocalyptic number.

1225044330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225044330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509278400).

1225044330 is an abundant number, since it is smaller than the sum of its proper divisors (1793512470).

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

1225044330 is a wasteful number, since it uses less digits than its factorization.

1225044330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1225044330 is about 35000.6332799851. The cubic root of 1225044330 is about 1070.0003872244. Note that the first 3 decimals are identical.

Adding to 1225044330 its reverse (334405221), we get a palindrome (1559449551).

The spelling of 1225044330 in words is "one billion, two hundred twenty-five million, forty-four thousand, three hundred thirty".