220102212122 has 32 divisors (see below), whose sum is σ = 356868666000. Its totient is φ = 101209420800.

The previous prime is 220102212091. The next prime is 220102212139. The reversal of 220102212122 is 221212201022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 153955001641 + 66147210481 = 392371^2 + 257191^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220102212122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8881004 + ... + 8905752.

Almost surely, 2^220102212122 is an apocalyptic number.

220102212122 is a deficient number, since it is larger than the sum of its proper divisors (136766453878).

220102212122 is a wasteful number, since it uses less digits than its factorization.

220102212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26018.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220102212122 its reverse (221212201022), we get a palindrome (441314413144).

The spelling of 220102212122 in words is "two hundred twenty billion, one hundred two million, two hundred twelve thousand, one hundred twenty-two".