220001020122222 has 96 divisors (see below), whose sum is σ = 486767842790112. Its totient is φ = 71794919089152.

The previous prime is 220001020122131. The next prime is 220001020122269. The reversal of 220001020122222 is 222221020100022.

220001020122222 is a `hidden beast` number, since 220 + 0 + 0 + 1 + 0 + 201 + 22 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220001020122195 and 220001020122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2366650168 + ... + 2366743124.

It is an arithmetic number, because the mean of its divisors is an integer number (5070498362397).

Almost surely, 2^{220001020122222} is an apocalyptic number.

220001020122222 is an abundant number, since it is smaller than the sum of its proper divisors (266766822667890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220001020122222 is a wasteful number, since it uses less digits than its factorization.

220001020122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106322 (or 106319 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220001020122222 its reverse (222221020100022), we get a palindrome (442222040222244).

The spelling of 220001020122222 in words is "two hundred twenty trillion, one billion, twenty million, one hundred twenty-two thousand, two hundred twenty-two".