221122211000222 has 384 divisors, whose sum is σ = 429879526078464. Its totient is φ = 84687482880000.

The previous prime is 221122211000219. The next prime is 221122211000227. The reversal of 221122211000222 is 222000112221122.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221122211000194 and 221122211000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122211000227) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 162470396822 + ... + 162470398182.

It is an arithmetic number, because the mean of its divisors is an integer number (1119477932496).

Almost surely, 2^{221122211000222} is an apocalyptic number.

221122211000222 is a deficient number, since it is larger than the sum of its proper divisors (208757315078242).

221122211000222 is a wasteful number, since it uses less digits than its factorization.

221122211000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221122211000222 its reverse (222000112221122), we get a palindrome (443122323221344).

The spelling of 221122211000222 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two", and thus it is an aban number.