122240300420 has 48 divisors (see below), whose sum is σ = 293480869248. Its totient is φ = 41896081920.

The previous prime is 122240300401. The next prime is 122240300423. The reversal of 122240300420 is 24003042221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122240300392 and 122240300401.

It is not an unprimeable number, because it can be changed into a prime (122240300423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244460 + ... + 551580.

It is an arithmetic number, because the mean of its divisors is an integer number (6114184776).

Almost surely, 2^122240300420 is an apocalyptic number.

122240300420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122240300420 is an abundant number, since it is smaller than the sum of its proper divisors (171240568828).

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

122240300420 is a wasteful number, since it uses less digits than its factorization.

122240300420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309980 (or 309978 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 122240300420 its reverse (24003042221), we get a palindrome (146243342641).

The spelling of 122240300420 in words is "one hundred twenty-two billion, two hundred forty million, three hundred thousand, four hundred twenty".