4122204453561 has 4 divisors (see below), whose sum is σ = 5496272604752. Its totient is φ = 2748136302372.

The previous prime is 4122204453533. The next prime is 4122204453701. The reversal of 4122204453561 is 1653544022214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4122204453561 - 2¹³ = 4122204445369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4122204454561) 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, 687034075591 + ... + 687034075596.

It is an arithmetic number, because the mean of its divisors is an integer number (1374068151188).

Almost surely, 2^{4122204453561} is an apocalyptic number.

It is an amenable number.

4122204453561 is a deficient number, since it is larger than the sum of its proper divisors (1374068151191).

4122204453561 is a wasteful number, since it uses less digits than its factorization.

4122204453561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374068151190.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 4122204453561 its reverse (1653544022214), we get a palindrome (5775748475775).

The spelling of 4122204453561 in words is "four trillion, one hundred twenty-two billion, two hundred four million, four hundred fifty-three thousand, five hundred sixty-one".