11222221100212 has 12 divisors (see below), whose sum is σ = 19639049236996. Its totient is φ = 5611064175360.

The previous prime is 11222221100197. The next prime is 11222221100231. The reversal of 11222221100212 is 21200112222211.

It can be written as a sum of positive squares in 2 ways, for example, as 8706488856976 + 2515732243236 = 2950676^2 + 1586106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11222221100212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11046339 + ... + 12019402.

Almost surely, 2^{11222221100212} is an apocalyptic number.

It is an amenable number.

11222221100212 is a deficient number, since it is larger than the sum of its proper divisors (8416828136784).

11222221100212 is a wasteful number, since it uses less digits than its factorization.

11222221100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23187378 (or 23187376 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11222221100212 its reverse (21200112222211), we get a palindrome (32422333322423).

The spelling of 11222221100212 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, two hundred twelve".