1222649600 has 54 divisors (see below), whose sum is σ = 3026264640. Its totient is φ = 489057280.

The previous prime is 1222649557. The next prime is 1222649627. The reversal of 1222649600 is 69462221.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89120 + ... + 101919.

Almost surely, 2^1222649600 is an apocalyptic number.

1222649600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222649600 is an abundant number, since it is smaller than the sum of its proper divisors (1803615040).

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

1222649600 is an equidigital number, since it uses as much as digits as its factorization.

1222649600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191065 (or 191046 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1222649600 is about 34966.4067356084. The cubic root of 1222649600 is about 1069.3027162845.

The spelling of 1222649600 in words is "one billion, two hundred twenty-two million, six hundred forty-nine thousand, six hundred".