122415044021 has 8 divisors (see below), whose sum is σ = 125426404824. Its totient is φ = 119404903680.

The previous prime is 122415044009. The next prime is 122415044023. The reversal of 122415044021 is 120440514221.

It can be written as a sum of positive squares in 4 ways, for example, as 8889849796 + 113525194225 = 94286^2 + 336935^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122415044021 is a prime.

It is a super-3 number, since 3×122415044021³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122415044023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100376 + ... + 504881.

It is an arithmetic number, because the mean of its divisors is an integer number (15678300603).

Almost surely, 2^122415044021 is an apocalyptic number.

It is an amenable number.

122415044021 is a deficient number, since it is larger than the sum of its proper divisors (3011360803).

122415044021 is an equidigital number, since it uses as much as digits as its factorization.

122415044021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610231.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 122415044021 its reverse (120440514221), we get a palindrome (242855558242).

The spelling of 122415044021 in words is "one hundred twenty-two billion, four hundred fifteen million, forty-four thousand, twenty-one".