221122010 has 8 divisors (see below), whose sum is σ = 398019636. Its totient is φ = 88448800.

The previous prime is 221122003. The next prime is 221122049. The reversal of 221122010 is 10221122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 203034001 + 18088009 = 14249^2 + 4253^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 221121982 and 221122000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11056091 + ... + 11056110.

Almost surely, 2^221122010 is an apocalyptic number.

221122010 is a deficient number, since it is larger than the sum of its proper divisors (176897626).

221122010 is a wasteful number, since it uses less digits than its factorization.

221122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112208.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 221122010 is about 14870.1718214686. The cubic root of 221122010 is about 604.7056009088.

Adding to 221122010 its reverse (10221122), we get a palindrome (231343132).

The spelling of 221122010 in words is "two hundred twenty-one million, one hundred twenty-two thousand, ten".