221226000355 has 8 divisors (see below), whose sum is σ = 265477381200. Its totient is φ = 176976679776.

The previous prime is 221226000349. The next prime is 221226000371. The reversal of 221226000355 is 553000622122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221226000355 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268065 + ... + 717154.

It is an arithmetic number, because the mean of its divisors is an integer number (33184672650).

Almost surely, 2^221226000355 is an apocalyptic number.

221226000355 is a deficient number, since it is larger than the sum of its proper divisors (44251380845).

221226000355 is an equidigital number, since it uses as much as digits as its factorization.

221226000355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030133.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 221226000355 its reverse (553000622122), we get a palindrome (774226622477).

The spelling of 221226000355 in words is "two hundred twenty-one billion, two hundred twenty-six million, three hundred fifty-five", and thus it is an aban number.