12561550203022 has 8 divisors (see below), whose sum is σ = 18843296466456. Its totient is φ = 6280451380872.

The previous prime is 12561550202983. The next prime is 12561550203061. The reversal of 12561550203022 is 22030205516521.

It is an interprime number because it is at equal distance from previous prime (12561550202983) and next prime (12561550203061).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161811813 + ... + 161889424.

It is an arithmetic number, because the mean of its divisors is an integer number (2355412058307).

Almost surely, 2^{12561550203022} is an apocalyptic number.

12561550203022 is a deficient number, since it is larger than the sum of its proper divisors (6281746263434).

12561550203022 is a wasteful number, since it uses less digits than its factorization.

12561550203022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323720642.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 12561550203022 its reverse (22030205516521), we get a palindrome (34591755719543).

The spelling of 12561550203022 in words is "twelve trillion, five hundred sixty-one billion, five hundred fifty million, two hundred three thousand, twenty-two".