1222510000 has 50 divisors (see below), whose sum is σ = 2959843172. Its totient is φ = 489000000.

The previous prime is 1222509991. The next prime is 1222510013. The reversal of 1222510000 is 152221.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 51126 + ... + 71125.

Almost surely, 2^1222510000 is an apocalyptic number.

1222510000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222510000 is an abundant number, since it is smaller than the sum of its proper divisors (1737333172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222510000 is an equidigital number, since it uses as much as digits as its factorization.

1222510000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122279 (or 122258 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1222510000 is about 34964.4104769407. The cubic root of 1222510000 is about 1069.2620176954.

Adding to 1222510000 its reverse (152221), we get a palindrome (1222662221).

The spelling of 1222510000 in words is "one billion, two hundred twenty-two million, five hundred ten thousand".