1222303550 has 24 divisors (see below), whose sum is σ = 2448369336. Its totient is φ = 451311840.

The previous prime is 1222303517. The next prime is 1222303597. The reversal of 1222303550 is 553032221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 939584 + ... + 940883.

It is an arithmetic number, because the mean of its divisors is an integer number (102015389).

Almost surely, 2^1222303550 is an apocalyptic number.

1222303550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222303550 is an abundant number, since it is smaller than the sum of its proper divisors (1226065786).

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

1222303550 is a wasteful number, since it uses less digits than its factorization.

1222303550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880492 (or 1880487 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1222303550 is about 34961.4580645602. The cubic root of 1222303550 is about 1069.2018241671.

Adding to 1222303550 its reverse (553032221), we get a palindrome (1775335771).

The spelling of 1222303550 in words is "one billion, two hundred twenty-two million, three hundred three thousand, five hundred fifty".