1212208160 has 24 divisors (see below), whose sum is σ = 2863842156. Its totient is φ = 484883200.

The previous prime is 1212208157. The next prime is 1212208187. The reversal of 1212208160 is 618022121.

It can be written as a sum of positive squares in 2 ways, for example, as 1192459024 + 19749136 = 34532^2 + 4444^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3787991 + ... + 3788310.

Almost surely, 2^1212208160 is an apocalyptic number.

1212208160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212208160 is an abundant number, since it is smaller than the sum of its proper divisors (1651633996).

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

1212208160 is an equidigital number, since it uses as much as digits as its factorization.

1212208160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7576316 (or 7576308 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1212208160 is about 34816.7798625892. The cubic root of 1212208160 is about 1066.2500577920.

The spelling of 1212208160 in words is "one billion, two hundred twelve million, two hundred eight thousand, one hundred sixty".