122312215115204 has 12 divisors (see below), whose sum is σ = 214178422346028. Its totient is φ = 61118380159200.

The previous prime is 122312215115203. The next prime is 122312215115239. The reversal of 122312215115204 is 402511512213221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37247194890304 + 85065020224900 = 6103048^2 + 9223070^2 .

It is not an unprimeable number, because it can be changed into a prime (122312215115203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9431842307 + ... + 9431855274.

It is an arithmetic number, because the mean of its divisors is an integer number (17848201862169).

Almost surely, 2^{122312215115204} is an apocalyptic number.

It is an amenable number.

122312215115204 is a deficient number, since it is larger than the sum of its proper divisors (91866207230824).

122312215115204 is a wasteful number, since it uses less digits than its factorization.

122312215115204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18863699206 (or 18863699204 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 122312215115204 its reverse (402511512213221), we get a palindrome (524823727328425).

The spelling of 122312215115204 in words is "one hundred twenty-two trillion, three hundred twelve billion, two hundred fifteen million, one hundred fifteen thousand, two hundred four".