121022320 has 160 divisors (see below), whose sum is σ = 321086592. Its totient is φ = 42172416.

The previous prime is 121022311. The next prime is 121022327. The reversal of 121022320 is 23220121.

It is a self number, because there is not a number n which added to its sum of digits gives 121022320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1657804 + ... + 1657876.

Almost surely, 2^121022320 is an apocalyptic number.

121022320 is a gapful number since it is divisible by the number (10) 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 121022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160543296).

121022320 is an abundant number, since it is smaller than the sum of its proper divisors (200064272).

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

121022320 is a wasteful number, since it uses less digits than its factorization.

121022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121022320 is about 11001.0144986724. The cubic root of 121022320 is about 494.6391547613.

Adding to 121022320 its reverse (23220121), we get a palindrome (144242441).

The spelling of 121022320 in words is "one hundred twenty-one million, twenty-two thousand, three hundred twenty".