2205561642242 has 8 divisors (see below), whose sum is σ = 3780962815296. Its totient is φ = 945240703812.

The previous prime is 2205561642241. The next prime is 2205561642259. The reversal of 2205561642242 is 2422461655022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2205561642242.

It is not an unprimeable number, because it can be changed into a prime (2205561642241) 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, 78770058638 + ... + 78770058665.

It is an arithmetic number, because the mean of its divisors is an integer number (472620351912).

Almost surely, 2^{2205561642242} is an apocalyptic number.

2205561642242 is a deficient number, since it is larger than the sum of its proper divisors (1575401173054).

2205561642242 is a wasteful number, since it uses less digits than its factorization.

2205561642242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157540117312.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 2205561642242 in words is "two trillion, two hundred five billion, five hundred sixty-one million, six hundred forty-two thousand, two hundred forty-two".