222879492304561 has 4 divisors (see below), whose sum is σ = 222881297251824. Its totient is φ = 222877687357300.

The previous prime is 222879492304523. The next prime is 222879492304649. The reversal of 222879492304561 is 165403294978222.

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 a cyclic number.

It is not a de Polignac number, because 222879492304561 - 2¹³ = 222879492296369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222879492304493 and 222879492304502.

It is not an unprimeable number, because it can be changed into a prime (222879492304061) 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, 902288395 + ... + 902535376.

It is an arithmetic number, because the mean of its divisors is an integer number (55720324312956).

It is a 1-persistent number, because it is pandigital, but 2⋅222879492304561 = 445758984609122 is not.

Almost surely, 2^{222879492304561} is an apocalyptic number.

It is an amenable number.

222879492304561 is a deficient number, since it is larger than the sum of its proper divisors (1804947263).

222879492304561 is a wasteful number, since it uses less digits than its factorization.

222879492304561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804947262.

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 222879492304561 in words is "two hundred twenty-two trillion, eight hundred seventy-nine billion, four hundred ninety-two million, three hundred four thousand, five hundred sixty-one".