1222108272 has 240 divisors, whose sum is σ = 4489355520. Its totient is φ = 300672000.

The previous prime is 1222108267. The next prime is 1222108273. The reversal of 1222108272 is 2728012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222108273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207772 + ... + 213572.

It is an arithmetic number, because the mean of its divisors is an integer number (18705648).

Almost surely, 2^1222108272 is an apocalyptic number.

1222108272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222108272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244677760).

1222108272 is an abundant number, since it is smaller than the sum of its proper divisors (3267247248).

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

1222108272 is a wasteful number, since it uses less digits than its factorization.

1222108272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852 (or 5843 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1222108272 is about 34958.6651919091. The cubic root of 1222108272 is about 1069.1448817614.

The spelling of 1222108272 in words is "one billion, two hundred twenty-two million, one hundred eight thousand, two hundred seventy-two".