221100011011222 has 24 divisors (see below), whose sum is σ = 385797738863376. Its totient is φ = 94756955782608.

The previous prime is 221100011011189. The next prime is 221100011011223. The reversal of 221100011011222 is 222110110001122.

It is a super-3 number, since 3×221100011011222³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221100011011196 and 221100011011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100011011223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53233608 + ... + 57236500.

It is an arithmetic number, because the mean of its divisors is an integer number (16074905785974).

Almost surely, 2^{221100011011222} is an apocalyptic number.

221100011011222 is a deficient number, since it is larger than the sum of its proper divisors (164697727852154).

221100011011222 is a wasteful number, since it uses less digits than its factorization.

221100011011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566532 (or 4566525 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221100011011222 its reverse (222110110001122), we get a palindrome (443210121012344).

The spelling of 221100011011222 in words is "two hundred twenty-one trillion, one hundred billion, eleven million, eleven thousand, two hundred twenty-two".