122303021220 has 72 divisors (see below), whose sum is σ = 381012495864. Its totient is φ = 31732674048.

The previous prime is 122303021189. The next prime is 122303021263. The reversal of 122303021220 is 22120303221.

122303021220 is a `hidden beast` number, since 12 + 230 + 302 + 122 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 30173774436 + 92129246784 = 173706^2 + 303528^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122303021193 and 122303021202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9175249 + ... + 9188568.

Almost surely, 2^122303021220 is an apocalyptic number.

122303021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122303021220 is an abundant number, since it is smaller than the sum of its proper divisors (258709474644).

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

122303021220 is a wasteful number, since it uses less digits than its factorization.

122303021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18363869 (or 18363864 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 122303021220 its reverse (22120303221), we get a palindrome (144423324441).

The spelling of 122303021220 in words is "one hundred twenty-two billion, three hundred three million, twenty-one thousand, two hundred twenty".