220022100111222 has 64 divisors (see below), whose sum is σ = 504736718008320. Its totient is φ = 70971141038400.

The previous prime is 220022100111137. The next prime is 220022100111241. The reversal of 220022100111222 is 222111001220022.

It is a happy number.

220022100111222 is a `hidden beast` number, since 220 + 0 + 2 + 210 + 0 + 1 + 11 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220022100111195 and 220022100111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28497463 + ... + 35385725.

It is an arithmetic number, because the mean of its divisors is an integer number (7886511218880).

Almost surely, 2^{220022100111222} is an apocalyptic number.

220022100111222 is an abundant number, since it is smaller than the sum of its proper divisors (284714617897098).

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

220022100111222 is a wasteful number, since it uses less digits than its factorization.

220022100111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907386 (or 6907380 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220022100111222 its reverse (222111001220022), we get a palindrome (442133101331244).

The spelling of 220022100111222 in words is "two hundred twenty trillion, twenty-two billion, one hundred million, one hundred eleven thousand, two hundred twenty-two".