122312221152025 has 6 divisors (see below), whose sum is σ = 151667154228542. Its totient is φ = 97849776921600.

The previous prime is 122312221152013. The next prime is 122312221152049. The reversal of 122312221152025 is 520251122213221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21426428219161 + 100885792932864 = 4628869^2 + 10044192^2 .

It is a de Polignac number, because none of the positive numbers 2^k-122312221152025 is a prime.

It is a Duffinian number.

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, 2446244423016 + ... + 2446244423065.

Almost surely, 2^{122312221152025} is an apocalyptic number.

It is an amenable number.

122312221152025 is a deficient number, since it is larger than the sum of its proper divisors (29354933076517).

122312221152025 is an equidigital number, since it uses as much as digits as its factorization.

122312221152025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892488846091 (or 4892488846086 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 122312221152025 its reverse (520251122213221), we get a palindrome (642563343365246).

The spelling of 122312221152025 in words is "one hundred twenty-two trillion, three hundred twelve billion, two hundred twenty-one million, one hundred fifty-two thousand, twenty-five".