221120202 has 8 divisors (see below), whose sum is σ = 442240416. Its totient is φ = 73706732.

The previous prime is 221120197. The next prime is 221120219. The reversal of 221120202 is 202021122.

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

221120202 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18426678 + ... + 18426689.

It is an arithmetic number, because the mean of its divisors is an integer number (55280052).

Almost surely, 2^221120202 is an apocalyptic number.

221120202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221120202 is a wasteful number, since it uses less digits than its factorization.

221120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36853372.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 221120202 is about 14870.1110285028. Note that the first 3 decimals coincide. The cubic root of 221120202 is about 604.7039527830.

Adding to 221120202 its reverse (202021122), we get a palindrome (423141324).

The spelling of 221120202 in words is "two hundred twenty-one million, one hundred twenty thousand, two hundred two".