1226213168 has 60 divisors (see below), whose sum is σ = 2518295664. Its totient is φ = 577315200.

The previous prime is 1226213147. The next prime is 1226213173. The reversal of 1226213168 is 8613126221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1854758 + ... + 1855418.

Almost surely, 2^1226213168 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 1226213168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259147832).

1226213168 is an abundant number, since it is smaller than the sum of its proper divisors (1292082496).

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

1226213168 is an equidigital number, since it uses as much as digits as its factorization.

1226213168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 757 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1226213168 is about 35017.3266826581. The cubic root of 1226213168 is about 1070.3405815978.

Adding to 1226213168 its reverse (8613126221), we get a palindrome (9839339389).

The spelling of 1226213168 in words is "one billion, two hundred twenty-six million, two hundred thirteen thousand, one hundred sixty-eight".