222605103656021 has 16 divisors (see below), whose sum is σ = 238327999603200. Its totient is φ = 207287696548800.

The previous prime is 222605103655967. The next prime is 222605103656107. The reversal of 222605103656021 is 120656301506222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222605103656021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222605103656021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222605103626021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65068310 + ... + 68403911.

It is an arithmetic number, because the mean of its divisors is an integer number (14895499975200).

Almost surely, 2^{222605103656021} is an apocalyptic number.

It is an amenable number.

222605103656021 is a deficient number, since it is larger than the sum of its proper divisors (15722895947179).

222605103656021 is a wasteful number, since it uses less digits than its factorization.

222605103656021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133473740.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 222605103656021 in words is "two hundred twenty-two trillion, six hundred five billion, one hundred three million, six hundred fifty-six thousand, twenty-one".