221122302 has 16 divisors (see below), whose sum is σ = 442392192. Its totient is φ = 73682840.

The previous prime is 221122301. The next prime is 221122309. The reversal of 221122302 is 203221122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27463 + ... + 34589.

It is an arithmetic number, because the mean of its divisors is an integer number (27649512).

Almost surely, 2^221122302 is an apocalyptic number.

221122302 is an abundant number, since it is smaller than the sum of its proper divisors (221269890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221122302 is a wasteful number, since it uses less digits than its factorization.

221122302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12303.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 221122302 is about 14870.1816397783. The cubic root of 221122302 is about 604.7058670876.

Adding to 221122302 its reverse (203221122), we get a palindrome (424343424).

The spelling of 221122302 in words is "two hundred twenty-one million, one hundred twenty-two thousand, three hundred two".