221122107 has 12 divisors (see below), whose sum is σ = 319528560. Its totient is φ = 147354768.

The previous prime is 221122103. The next prime is 221122123. The reversal of 221122107 is 701221122.

It is a happy number.

It is not a de Polignac number, because 221122107 - 2² = 221122103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221122107.

It is not an unprimeable number, because it can be changed into a prime (221122103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36394 + ... + 42032.

It is an arithmetic number, because the mean of its divisors is an integer number (26627380).

Almost surely, 2^221122107 is an apocalyptic number.

221122107 is a deficient number, since it is larger than the sum of its proper divisors (98406453).

221122107 is a wasteful number, since it uses less digits than its factorization.

221122107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002 (or 9999 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 221122107 is about 14870.1750830311. The cubic root of 221122107 is about 604.7056893313.

Adding to 221122107 its reverse (701221122), we get a palindrome (922343229).

The spelling of 221122107 in words is "two hundred twenty-one million, one hundred twenty-two thousand, one hundred seven".