1220612366 has 16 divisors (see below), whose sum is σ = 1866827088. Its totient is φ = 598353600.

The previous prime is 1220612363. The next prime is 1220612413. The reversal of 1220612366 is 6632160221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220612363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179081 + ... + 185771.

It is an arithmetic number, because the mean of its divisors is an integer number (116676693).

Almost surely, 2^1220612366 is an apocalyptic number.

1220612366 is a deficient number, since it is larger than the sum of its proper divisors (646214722).

1220612366 is a wasteful number, since it uses less digits than its factorization.

1220612366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1220612366 is about 34937.2632872124. The cubic root of 1220612366 is about 1068.7084792825.

Adding to 1220612366 its reverse (6632160221), we get a palindrome (7852772587).

The spelling of 1220612366 in words is "one billion, two hundred twenty million, six hundred twelve thousand, three hundred sixty-six".