221122112011222 has 4 divisors (see below), whose sum is σ = 331683168016836. Its totient is φ = 110561056005610.

The previous prime is 221122112011159. The next prime is 221122112011261. The reversal of 221122112011222 is 222110211221122.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 221122112011193 and 221122112011202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55280528002804 + ... + 55280528002807.

It is an arithmetic number, because the mean of its divisors is an integer number (82920792004209).

Almost surely, 2^{221122112011222} is an apocalyptic number.

221122112011222 is a deficient number, since it is larger than the sum of its proper divisors (110561056005614).

221122112011222 is a wasteful number, since it uses less digits than its factorization.

221122112011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110561056005613.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 221122112011222 its reverse (222110211221122), we get a palindrome (443232323232344).

The spelling of 221122112011222 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred twelve million, eleven thousand, two hundred twenty-two".