221022222112 has 48 divisors (see below), whose sum is σ = 441892372320. Its totient is φ = 108797534208.

The previous prime is 221022222107. The next prime is 221022222121. The reversal of 221022222112 is 211222220122.

It is a self number, because there is not a number n which added to its sum of digits gives 221022222112.

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, 3716064 + ... + 3775072.

It is an arithmetic number, because the mean of its divisors is an integer number (9206091090).

Almost surely, 2^221022222112 is an apocalyptic number.

It is an amenable number.

221022222112 is a deficient number, since it is larger than the sum of its proper divisors (220870150208).

221022222112 is a wasteful number, since it uses less digits than its factorization.

221022222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60833 (or 60825 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221022222112 its reverse (211222220122), we get a palindrome (432244442234).

The spelling of 221022222112 in words is "two hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand, one hundred twelve".