221040122 has 8 divisors (see below), whose sum is σ = 335555136. Its totient is φ = 109188412.

The previous prime is 221040121. The next prime is 221040179.

221040122 is nontrivially palindromic in base 10.

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 = 221040097 and 221040106.

It is not an unprimeable number, because it can be changed into a prime (221040121) 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 3 ways as a sum of consecutive naturals, for example, 665618 + ... + 665949.

It is an arithmetic number, because the mean of its divisors is an integer number (41944392).

Almost surely, 2^221040122 is an apocalyptic number.

221040122 is a deficient number, since it is larger than the sum of its proper divisors (114515014).

221040122 is a wasteful number, since it uses less digits than its factorization.

221040122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331652.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 221040122 is about 14867.4181349688. The cubic root of 221040122 is about 604.6309449211.

The spelling of 221040122 in words is "two hundred twenty-one million, forty thousand, one hundred twenty-two".