1225551130 has 16 divisors (see below), whose sum is σ = 2210219424. Its totient is φ = 489281040.

The previous prime is 1225551073. The next prime is 1225551137. The reversal of 1225551130 is 311555221.

It is a junction number, because it is equal to n+sod(n) for n = 1225551095 and 1225551104.

It is not an unprimeable number, because it can be changed into a prime (1225551137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111936 + ... + 122395.

It is an arithmetic number, because the mean of its divisors is an integer number (138138714).

Almost surely, 2^1225551130 is an apocalyptic number.

1225551130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225551130 is a deficient number, since it is larger than the sum of its proper divisors (984668294).

1225551130 is a wasteful number, since it uses less digits than its factorization.

1225551130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234861.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1225551130 is about 35007.8724003616. The cubic root of 1225551130 is about 1070.1479196906.

The spelling of 1225551130 in words is "one billion, two hundred twenty-five million, five hundred fifty-one thousand, one hundred thirty".