221100013222 has 32 divisors (see below), whose sum is σ = 364733927424. Its totient is φ = 99685404000.

The previous prime is 221100013217. The next prime is 221100013229. The reversal of 221100013222 is 222310001122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221100013196 and 221100013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100013229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18889972 + ... + 18901672.

It is an arithmetic number, because the mean of its divisors is an integer number (11397935232).

Almost surely, 2^221100013222 is an apocalyptic number.

221100013222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221100013222 is a deficient number, since it is larger than the sum of its proper divisors (143633914202).

221100013222 is a wasteful number, since it uses less digits than its factorization.

221100013222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18604.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221100013222 its reverse (222310001122), we get a palindrome (443410014344).

It can be divided in two parts, 2211000 and 13222, that added together give a palindrome (2224222).

The spelling of 221100013222 in words is "two hundred twenty-one billion, one hundred million, thirteen thousand, two hundred twenty-two".