1222520200 has 48 divisors (see below), whose sum is σ = 3100761360. Its totient is φ = 444552000.

The previous prime is 1222520177. The next prime is 1222520227. The reversal of 1222520200 is 20252221.

1222520200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275646 + ... + 280045.

It is an arithmetic number, because the mean of its divisors is an integer number (64599195).

Almost surely, 2^1222520200 is an apocalyptic number.

1222520200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222520200 is an abundant number, since it is smaller than the sum of its proper divisors (1878241160).

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

1222520200 is a wasteful number, since it uses less digits than its factorization.

1222520200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555718 (or 555709 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1222520200 is about 34964.5563392416. The cubic root of 1222520200 is about 1069.2649914795.

Adding to 1222520200 its reverse (20252221), we get a palindrome (1242772421).

The spelling of 1222520200 in words is "one billion, two hundred twenty-two million, five hundred twenty thousand, two hundred".