1225320110 has 16 divisors (see below), whose sum is σ = 2520658656. Its totient is φ = 420109728.

The previous prime is 1225320077. The next prime is 1225320113. The reversal of 1225320110 is 110235221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225320113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8752217 + ... + 8752356.

It is an arithmetic number, because the mean of its divisors is an integer number (157541166).

Almost surely, 2^1225320110 is an apocalyptic number.

1225320110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225320110 is an abundant number, since it is smaller than the sum of its proper divisors (1295338546).

1225320110 is a wasteful number, since it uses less digits than its factorization.

1225320110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17504587.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1225320110 is about 35004.5727012915. The cubic root of 1225320110 is about 1070.0806734527.

Adding to 1225320110 its reverse (110235221), we get a palindrome (1335555331).

The spelling of 1225320110 in words is "one billion, two hundred twenty-five million, three hundred twenty thousand, one hundred ten".