1222646516 has 48 divisors (see below), whose sum is σ = 2645172096. Its totient is φ = 481521024.

The previous prime is 1222646473. The next prime is 1222646539. The reversal of 1222646516 is 6156462221.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 75230 + ... + 90026.

It is an arithmetic number, because the mean of its divisors is an integer number (55107752).

Almost surely, 2^1222646516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222646516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322586048).

1222646516 is an abundant number, since it is smaller than the sum of its proper divisors (1422525580).

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

1222646516 is a wasteful number, since it uses less digits than its factorization.

1222646516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15048 (or 15046 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 1222646516 is about 34966.3626361107. The cubic root of 1222646516 is about 1069.3018172173.

The spelling of 1222646516 in words is "one billion, two hundred twenty-two million, six hundred forty-six thousand, five hundred sixteen".