1225524022 has 4 divisors (see below), whose sum is σ = 1838286036. Its totient is φ = 612762010.

The previous prime is 1225524011. The next prime is 1225524029. The reversal of 1225524022 is 2204255221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225524029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306381004 + ... + 306381007.

It is an arithmetic number, because the mean of its divisors is an integer number (459571509).

Almost surely, 2^1225524022 is an apocalyptic number.

1225524022 is a deficient number, since it is larger than the sum of its proper divisors (612762014).

1225524022 is an equidigital number, since it uses as much as digits as its factorization.

1225524022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612762013.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1225524022 is about 35007.4852281623. The cubic root of 1225524022 is about 1070.1400294217.

Adding to 1225524022 its reverse (2204255221), we get a palindrome (3429779243).

The spelling of 1225524022 in words is "one billion, two hundred twenty-five million, five hundred twenty-four thousand, twenty-two".