221332220111222 has 16 divisors (see below), whose sum is σ = 363589257241872. Its totient is φ = 100214093291520.

The previous prime is 221332220111207. The next prime is 221332220111243. The reversal of 221332220111222 is 222111022233122.

It is a junction number, because it is equal to n+sod(n) for n = 221332220111191 and 221332220111200.

It is a congruent number.

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, 19573059443 + ... + 19573070750.

It is an arithmetic number, because the mean of its divisors is an integer number (22724328577617).

Almost surely, 2^{221332220111222} is an apocalyptic number.

221332220111222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221332220111222 is a deficient number, since it is larger than the sum of its proper divisors (142257037130650).

221332220111222 is a wasteful number, since it uses less digits than its factorization.

221332220111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39146130463.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 221332220111222 its reverse (222111022233122), we get a palindrome (443443242344344).

The spelling of 221332220111222 in words is "two hundred twenty-one trillion, three hundred thirty-two billion, two hundred twenty million, one hundred eleven thousand, two hundred twenty-two".