221122315 has 8 divisors (see below), whose sum is σ = 280955520. Its totient is φ = 166492032.

The previous prime is 221122309. The next prime is 221122331. The reversal of 221122315 is 513221122.

221122315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-221122315 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221122292 and 221122301.

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, 1300635 + ... + 1300804.

It is an arithmetic number, because the mean of its divisors is an integer number (35119440).

Almost surely, 2^221122315 is an apocalyptic number.

221122315 is a deficient number, since it is larger than the sum of its proper divisors (59833205).

221122315 is a wasteful number, since it uses less digits than its factorization.

221122315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601461.

The product of its digits is 240, while the sum is 19.

The square root of 221122315 is about 14870.1820768947. The cubic root of 221122315 is about 604.7058789380.

Adding to 221122315 its reverse (513221122), we get a palindrome (734343437).

The spelling of 221122315 in words is "two hundred twenty-one million, one hundred twenty-two thousand, three hundred fifteen".