22012110212 has 24 divisors (see below), whose sum is σ = 38636177496. Its totient is φ = 10973253888.

The previous prime is 22012110173. The next prime is 22012110247. The reversal of 22012110212 is 21201121022.

It can be written as a sum of positive squares in 4 ways, for example, as 7446999616 + 14565110596 = 86296^2 + 120686^2 .

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, 1908848 + ... + 1920344.

It is an arithmetic number, because the mean of its divisors is an integer number (1609840729).

Almost surely, 2^22012110212 is an apocalyptic number.

It is an amenable number.

22012110212 is a deficient number, since it is larger than the sum of its proper divisors (16624067284).

22012110212 is a wasteful number, since it uses less digits than its factorization.

22012110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12887 (or 12885 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22012110212 its reverse (21201121022), we get a palindrome (43213231234).

The spelling of 22012110212 in words is "twenty-two billion, twelve million, one hundred ten thousand, two hundred twelve".