220021122 has 8 divisors (see below), whose sum is σ = 440042256. Its totient is φ = 73340372.

The previous prime is 220021103. The next prime is 220021163. The reversal of 220021122 is 221120022.

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

220021122 is an admirable number.

It is a super-2 number, since 2×220021122² = 96818588252277768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220021098 and 220021107.

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 3 ways as a sum of consecutive naturals, for example, 18335088 + ... + 18335099.

It is an arithmetic number, because the mean of its divisors is an integer number (55005282).

Almost surely, 2^220021122 is an apocalyptic number.

220021122 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.

220021122 is a wasteful number, since it uses less digits than its factorization.

220021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36670192.

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

The square root of 220021122 is about 14833.1089795767. The cubic root of 220021122 is about 603.7003926852.

Adding to 220021122 its reverse (221120022), we get a palindrome (441141144).

The spelling of 220021122 in words is "two hundred twenty million, twenty-one thousand, one hundred twenty-two".