22110222012 has 48 divisors (see below), whose sum is σ = 52267084800. Its totient is φ = 7273506240.

The previous prime is 22110221983. The next prime is 22110222037. The reversal of 22110222012 is 21022201122.

It is a junction number, because it is equal to n+sod(n) for n = 22110221982 and 22110222000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3021414 + ... + 3028722.

It is an arithmetic number, because the mean of its divisors is an integer number (1088897600).

Almost surely, 2^22110222012 is an apocalyptic number.

It is an amenable number.

22110222012 is an abundant number, since it is smaller than the sum of its proper divisors (30156862788).

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

22110222012 is a wasteful number, since it uses less digits than its factorization.

22110222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10586 (or 10584 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22110222012 its reverse (21022201122), we get a palindrome (43132423134).

The spelling of 22110222012 in words is "twenty-two billion, one hundred ten million, two hundred twenty-two thousand, twelve".