122231514420 has 72 divisors (see below), whose sum is σ = 371000240520. Its totient is φ = 32574735360.

The previous prime is 122231514389. The next prime is 122231514421. The reversal of 122231514420 is 24415132221.

122231514420 is a `hidden beast` number, since 1 + 2 + 2 + 231 + 5 + 1 + 4 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16546705956 + 105684808464 = 128634^2 + 325092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231514421) 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, 78600 + ... + 500640.

Almost surely, 2^122231514420 is an apocalyptic number.

122231514420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122231514420 is an abundant number, since it is smaller than the sum of its proper divisors (248768726100).

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

122231514420 is a wasteful number, since it uses less digits than its factorization.

122231514420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423665 (or 423660 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 122231514420 its reverse (24415132221), we get a palindrome (146646646641).

The spelling of 122231514420 in words is "one hundred twenty-two billion, two hundred thirty-one million, five hundred fourteen thousand, four hundred twenty".