1220550716 has 36 divisors (see below), whose sum is σ = 2683201584. Its totient is φ = 475537920.

The previous prime is 1220550713. The next prime is 1220550719. The reversal of 1220550716 is 6170550221.

It is an interprime number because it is at equal distance from previous prime (1220550713) and next prime (1220550719).

It is a super-2 number, since 2×1220550716² = 2979488100656225312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220550713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176741 + ... + 183516.

Almost surely, 2^1220550716 is an apocalyptic number.

It is an amenable number.

1220550716 is an abundant number, since it is smaller than the sum of its proper divisors (1462650868).

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

1220550716 is a wasteful number, since it uses less digits than its factorization.

1220550716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360290 (or 360277 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1220550716 is about 34936.3809802904. The cubic root of 1220550716 is about 1068.6904864048.

The spelling of 1220550716 in words is "one billion, two hundred twenty million, five hundred fifty thousand, seven hundred sixteen".