1222555060 has 48 divisors (see below), whose sum is σ = 2656281600. Its totient is φ = 472158720.

The previous prime is 1222555049. The next prime is 1222555067. The reversal of 1222555060 is 605552221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222555067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299916 + ... + 303964.

It is an arithmetic number, because the mean of its divisors is an integer number (55339200).

Almost surely, 2^1222555060 is an apocalyptic number.

1222555060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222555060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328140800).

1222555060 is an abundant number, since it is smaller than the sum of its proper divisors (1433726540).

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

1222555060 is a wasteful number, since it uses less digits than its factorization.

1222555060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576 (or 4574 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1222555060 is about 34965.0548405118. The cubic root of 1222555060 is about 1069.2751546990.

The spelling of 1222555060 in words is "one billion, two hundred twenty-two million, five hundred fifty-five thousand, sixty".