220001122212 has 24 divisors (see below), whose sum is σ = 527209897536. Its totient is φ = 71351715168.

The previous prime is 220001122141. The next prime is 220001122223. The reversal of 220001122212 is 212221100022.

It is a junction number, because it is equal to n+sod(n) for n = 220001122191 and 220001122200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247748568 + ... + 247749455.

It is an arithmetic number, because the mean of its divisors is an integer number (21967079064).

Almost surely, 2^220001122212 is an apocalyptic number.

It is an amenable number.

220001122212 is an abundant number, since it is smaller than the sum of its proper divisors (307208775324).

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

220001122212 is a wasteful number, since it uses less digits than its factorization.

220001122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495498067 (or 495498065 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220001122212 its reverse (212221100022), we get a palindrome (432222222234).

The spelling of 220001122212 in words is "two hundred twenty billion, one million, one hundred twenty-two thousand, two hundred twelve".