122204150521 has 2 divisors, whose sum is σ = 122204150522. Its totient is φ = 122204150520.

The previous prime is 122204150479. The next prime is 122204150573. The reversal of 122204150521 is 125051402221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69825420025 + 52378730496 = 264245^2 + 228864^2 .

It is a cyclic number.

It is not a de Polignac number, because 122204150521 - 2⁹ = 122204150009 is a prime.

It is not a weakly prime, because it can be changed into another prime (122204150221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61102075260 + 61102075261.

It is an arithmetic number, because the mean of its divisors is an integer number (61102075261).

Almost surely, 2^122204150521 is an apocalyptic number.

It is an amenable number.

122204150521 is a deficient number, since it is larger than the sum of its proper divisors (1).

122204150521 is an equidigital number, since it uses as much as digits as its factorization.

122204150521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 122204150521 its reverse (125051402221), we get a palindrome (247255552742).

The spelling of 122204150521 in words is "one hundred twenty-two billion, two hundred four million, one hundred fifty thousand, five hundred twenty-one".