22220011012 has 6 divisors (see below), whose sum is σ = 38885019278. Its totient is φ = 11110005504.

The previous prime is 22220011003. The next prime is 22220011057. The reversal of 22220011012 is 21011002222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22137273796 + 82737216 = 148786^2 + 9096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22220010983 and 22220011001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777501373 + ... + 2777501380.

Almost surely, 2^22220011012 is an apocalyptic number.

It is an amenable number.

22220011012 is a deficient number, since it is larger than the sum of its proper divisors (16665008266).

22220011012 is a wasteful number, since it uses less digits than its factorization.

22220011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555002757 (or 5555002755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22220011012 its reverse (21011002222), we get a palindrome (43231013234).

The spelling of 22220011012 in words is "twenty-two billion, two hundred twenty million, eleven thousand, twelve".