220221122 has 16 divisors (see below), whose sum is σ = 362077344. Its totient is φ = 99624000.

The previous prime is 220221101. The next prime is 220221143. The reversal of 220221122 is 221122022.

It is an interprime number because it is at equal distance from previous prime (220221101) and next prime (220221143).

It is a junction number, because it is equal to n+sod(n) for n = 220221097 and 220221106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19079 + ... + 28362.

It is an arithmetic number, because the mean of its divisors is an integer number (22629834).

Almost surely, 2^220221122 is an apocalyptic number.

220221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220221122 is a deficient number, since it is larger than the sum of its proper divisors (141856222).

220221122 is a wasteful number, since it uses less digits than its factorization.

220221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47665.

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

The square root of 220221122 is about 14839.8491232222. The cubic root of 220221122 is about 603.8832592384.

Adding to 220221122 its reverse (221122022), we get a palindrome (441343144).

The spelling of 220221122 in words is "two hundred twenty million, two hundred twenty-one thousand, one hundred twenty-two".