1225212230 has 16 divisors (see below), whose sum is σ = 2405871504. Its totient is φ = 445531680.

The previous prime is 1225212227. The next prime is 1225212239. The reversal of 1225212230 is 322125221.

It is a super-2 number, since 2×1225212230² = 3002290017083145800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225212239) 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 in 7 ways as a sum of consecutive naturals, for example, 5569037 + ... + 5569256.

It is an arithmetic number, because the mean of its divisors is an integer number (150366969).

Almost surely, 2^1225212230 is an apocalyptic number.

1225212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225212230 is a deficient number, since it is larger than the sum of its proper divisors (1180659274).

1225212230 is a wasteful number, since it uses less digits than its factorization.

1225212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11138311.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1225212230 is about 35003.0317258377. The cubic root of 1225212230 is about 1070.0492684101.

Adding to 1225212230 its reverse (322125221), we get a palindrome (1547337451).

The spelling of 1225212230 in words is "one billion, two hundred twenty-five million, two hundred twelve thousand, two hundred thirty".