122040215225 has 6 divisors (see below), whose sum is σ = 151329866910. Its totient is φ = 97632172160.

The previous prime is 122040215189. The next prime is 122040215293. The reversal of 122040215225 is 522512040221.

It can be written as a sum of positive squares in 3 ways, for example, as 655564816 + 121384650409 = 25604^2 + 348403^2 .

It is not a de Polignac number, because 122040215225 - 2¹⁰ = 122040214201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122040215194 and 122040215203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2440804280 + ... + 2440804329.

It is an arithmetic number, because the mean of its divisors is an integer number (25221644485).

Almost surely, 2^122040215225 is an apocalyptic number.

It is an amenable number.

122040215225 is a deficient number, since it is larger than the sum of its proper divisors (29289651685).

122040215225 is an equidigital number, since it uses as much as digits as its factorization.

122040215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881608619 (or 4881608614 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 122040215225 its reverse (522512040221), we get a palindrome (644552255446).

The spelling of 122040215225 in words is "one hundred twenty-two billion, forty million, two hundred fifteen thousand, two hundred twenty-five".