109721022 has 8 divisors (see below), whose sum is σ = 219442056. Its totient is φ = 36573672.

The previous prime is 109720987. The next prime is 109721023. The reversal of 109721022 is 220127901.

It is a sphenic number, since it is the product of 3 distinct primes.

109721022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 109720983 and 109721001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109721023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9143413 + ... + 9143424.

It is an arithmetic number, because the mean of its divisors is an integer number (27430257).

Almost surely, 2^109721022 is an apocalyptic number.

109721022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

109721022 is a wasteful number, since it uses less digits than its factorization.

109721022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18286842.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 109721022 is about 10474.7802840919. The cubic root of 109721022 is about 478.7365819625.

Adding to 109721022 its reverse (220127901), we get a palindrome (329848923).

The spelling of 109721022 in words is "one hundred nine million, seven hundred twenty-one thousand, twenty-two".