1225243544330 has 32 divisors (see below), whose sum is σ = 2375314913664. Its totient is φ = 452354296896.

The previous prime is 1225243544321. The next prime is 1225243544341. The reversal of 1225243544330 is 334453425221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 927749 + ... + 1819671.

It is an arithmetic number, because the mean of its divisors is an integer number (74228591052).

Almost surely, 2^{1225243544330} is an apocalyptic number.

1225243544330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225243544330 is a deficient number, since it is larger than the sum of its proper divisors (1150071369334).

1225243544330 is a wasteful number, since it uses less digits than its factorization.

1225243544330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902510.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 1225243544330 its reverse (334453425221), we get a palindrome (1559696969551).

The spelling of 1225243544330 in words is "one trillion, two hundred twenty-five billion, two hundred forty-three million, five hundred forty-four thousand, three hundred thirty".