109722312 has 96 divisors (see below), whose sum is σ = 351374400. Its totient is φ = 30264192.

The previous prime is 109722307. The next prime is 109722313. The reversal of 109722312 is 213227901.

It is not an unprimeable number, because it can be changed into a prime (109722313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10863 + ... + 18369.

It is an arithmetic number, because the mean of its divisors is an integer number (3660150).

Almost surely, 2^109722312 is an apocalyptic number.

109722312 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 109722312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175687200).

109722312 is an abundant number, since it is smaller than the sum of its proper divisors (241652088).

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

109722312 is a wasteful number, since it uses less digits than its factorization.

109722312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7555 (or 7548 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 109722312 is about 10474.8418603815. The cubic root of 109722312 is about 478.7384581383.

It can be divided in two parts, 1097 and 22312, that added together give a square (23409 = 153²).

The spelling of 109722312 in words is "one hundred nine million, seven hundred twenty-two thousand, three hundred twelve".